CNS5:Diffuse hemispheric glioma, H3 G34-mutant: Difference between revisions
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{{DISPLAYTITLE:Diffuse hemispheric glioma, H3 G34-mutant}} | {{DISPLAYTITLE:Diffuse hemispheric glioma, H3 G34-mutant}} | ||
[[CNS5:Table_of_Contents|Central Nervous System Tumours(WHO Classification, 5th ed.)]] | [[CNS5:Table_of_Contents|Central Nervous System Tumours (WHO Classification, 5th ed.)]] | ||
{{Under Construction}} | {{Under Construction}} | ||
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Xiaolin Hu, PhD, Sema4 OpCo Inc. | Xiaolin Hu, PhD, Sema4 OpCo Inc. | ||
==WHO Classification of Disease== | ==WHO Classification of Disease== | ||
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|Subtype(s) | |Subtype(s) | ||
|Diffuse hemispheric glioma, H3 G34-mutant | |Diffuse hemispheric glioma, H3 G34-mutant | ||
|} | |||
==Related Terminology== | |||
{| class="wikitable" | |||
|+ | |||
|Acceptable | |||
|N/A | |||
|- | |||
|Not Recommended | |||
|Paediatric glioblastoma, H3.3 G34–mutant | |||
|} | |} | ||
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{| class="wikitable sortable" | {| class="wikitable sortable" | ||
|- | |- | ||
!Chr #!! | !Chr #!!Gain, Loss, Amp, LOH!!Minimal Region Cytoband and/or Genomic Coordinates [Genome Build; Size]!!Relevant Gene(s) | ||
! | !Diagnostic, Prognostic, and Therapeutic Significance - D, P, T | ||
! | !Established Clinical Significance Per Guidelines - Yes or No (Source) | ||
! | !Clinical Relevance Details/Other Notes | ||
|- | |- | ||
|<span class="blue-text">EXAMPLE:</span> | |<span class="blue-text">EXAMPLE:</span> | ||
| Line 197: | Line 207: | ||
|14% case of G34-DHG <ref name=":5" /> | |14% case of G34-DHG <ref name=":5" /> | ||
|} | |} | ||
==Characteristic Chromosomal or Other Global Mutational Patterns== | ==Characteristic Chromosomal or Other Global Mutational Patterns== | ||
Put your text here and fill in the table <span style="color:#0070C0">(I''nstructions: Included in this category are alterations such as hyperdiploid; gain of odd number chromosomes including typically chromosome 1, 3, 5, 7, 11, and 17; co-deletion of 1p and 19q; complex karyotypes without characteristic genetic findings; chromothripsis; microsatellite instability; homologous recombination deficiency; mutational signature pattern; etc. Details on clinical significance such as prognosis and other important information can be provided in the notes section. Please include references throughout the table. Do not delete the table.'')</span> | Put your text here and fill in the table <span style="color:#0070C0">(I''nstructions: Included in this category are alterations such as hyperdiploid; gain of odd number chromosomes including typically chromosome 1, 3, 5, 7, 11, and 17; co-deletion of 1p and 19q; complex karyotypes without characteristic genetic findings; chromothripsis; microsatellite instability; homologous recombination deficiency; mutational signature pattern; etc. Details on clinical significance such as prognosis and other important information can be provided in the notes section. Please include references throughout the table. Do not delete the table.'')</span> | ||
| Line 205: | Line 213: | ||
!Chromosomal Pattern | !Chromosomal Pattern | ||
!Molecular Pathogenesis | !Molecular Pathogenesis | ||
! | !Prevalence - | ||
Common >20%, Recurrent 5-20% or Rare <5% (Disease) | |||
! | !Diagnostic, Prognostic, and Therapeutic Significance - D, P, T | ||
! | !Established Clinical Significance Per Guidelines - Yes or No (Source) | ||
! | !Clinical Relevance Details/Other Notes | ||
|- | |- | ||
|<span class="blue-text">EXAMPLE:</span> | |<span class="blue-text">EXAMPLE:</span> | ||
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|} | |} | ||
'''Add content below into table above''' - | |||
'''Add content below into table above''' - | |||
{| class="wikitable sortable" | {| class="wikitable sortable" | ||
|- | |- | ||
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|Found in 44% of cases of G34-DHG <ref name=":5" /> | |Found in 44% of cases of G34-DHG <ref name=":5" /> | ||
|} | |} | ||
==Gene Mutations (SNV/INDEL)== | ==Gene Mutations (SNV/INDEL)== | ||
Put your text here and fill in the table <span style="color:#0070C0">(''Instructions: This table is not meant to be an exhaustive list; please include only genes/alterations that are recurrent or common as well either disease defining and/or clinically significant. If a gene has multiple mechanisms depending on the type or site of the alteration, add multiple entries in the table. For clinical significance, denote associations with FDA-approved therapy (not an extensive list of applicable drugs) and NCCN or other national guidelines if applicable; Can also refer to CGC workgroup tables as linked on the homepage if applicable as well as any high impact papers or reviews of gene mutations in this entity. Details on clinical significance such as prognosis and other important information such as concomitant and mutually exclusive mutations can be provided in the notes section. Please include references throughout the table. Do not delete the table.'') </span> | Put your text here and fill in the table <span style="color:#0070C0">(''Instructions: This table is not meant to be an exhaustive list; please include only genes/alterations that are recurrent or common as well either disease defining and/or clinically significant. If a gene has multiple mechanisms depending on the type or site of the alteration, add multiple entries in the table. For clinical significance, denote associations with FDA-approved therapy (not an extensive list of applicable drugs) and NCCN or other national guidelines if applicable; Can also refer to CGC workgroup tables as linked on the homepage if applicable as well as any high impact papers or reviews of gene mutations in this entity. Details on clinical significance such as prognosis and other important information such as concomitant and mutually exclusive mutations can be provided in the notes section. Please include references throughout the table. Do not delete the table.'') </span> | ||
{| class="wikitable sortable" | {| class="wikitable sortable" | ||
|- | |- | ||
!Gene!! | !Gene!!Genetic Alteration!!Tumor Suppressor Gene, Oncogene, Other!!Prevalence - | ||
Common >20%, Recurrent 5-20% or Rare <5% (Disease) | |||
! | !Diagnostic, Prognostic, and Therapeutic Significance - D, P, T | ||
! | !Established Clinical Significance Per Guidelines - Yes or No (Source) | ||
! | !Clinical Relevance Details/Other Notes | ||
|- | |- | ||
|<span class="blue-text">EXAMPLE:</span>''EGFR'' | |<span class="blue-text">EXAMPLE:</span>''EGFR'' | ||
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| | | | ||
|}Note: A more extensive list of mutations can be found in [https://www.cbioportal.org/ <u>cBioportal</u>], [https://cancer.sanger.ac.uk/cosmic <u>COSMIC</u>], and/or other databases. When applicable, gene-specific pages within the CCGA site directly link to pertinent external content. | |}Note: A more extensive list of mutations can be found in [https://www.cbioportal.org/ <u>cBioportal</u>], [https://cancer.sanger.ac.uk/cosmic <u>COSMIC</u>], and/or other databases. When applicable, gene-specific pages within the CCGA site directly link to pertinent external content. | ||
'''Add content below into table above''' - | |||
{| class="wikitable sortable" | {| class="wikitable sortable" | ||
|- | |- | ||
!Gene; Genetic Alteration!! | !Gene; Genetic Alteration!!Presumed Mechanism (Tumor Suppressor Gene [TSG] / Oncogene / Other)!!Prevalence (COSMIC / TCGA / Other)!!Concomitant Mutations!!Mutually Exclusive Mutations | ||
! | !Diagnostic Significance (Yes, No or Unknown) | ||
!Prognostic Significance (Yes, No or Unknown) | !Prognostic Significance (Yes, No or Unknown) | ||
!Therapeutic Significance (Yes, No or Unknown) | !Therapeutic Significance (Yes, No or Unknown) | ||
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|} | |} | ||
Note: A more extensive list of mutations can be found in cBioportal (https://www.cbioportal.org/), COSMIC (https://cancer.sanger.ac.uk/cosmic), ICGC (https://dcc.icgc.org/) and/or other databases. When applicable, gene-specific pages within the CCGA site directly link to pertinent external content. | Note: A more extensive list of mutations can be found in cBioportal (https://www.cbioportal.org/), COSMIC (https://cancer.sanger.ac.uk/cosmic), ICGC (https://dcc.icgc.org/) and/or other databases. When applicable, gene-specific pages within the CCGA site directly link to pertinent external content. | ||
==Epigenomic Alterations== | |||
Put your text here | |||
==Genes and Main Pathways Involved== | |||
Put your text here and fill in the table <span style="color:#0070C0">(''Instructions: Please include references throughout the table. Do not delete the table.)''</span> | |||
{| class="wikitable sortable" | |||
|- | |||
!Gene; Genetic Alteration!!Pathway!!Pathophysiologic Outcome | |||
|- | |||
|<span class="blue-text">EXAMPLE:</span> ''BRAF'' and ''MAP2K1''; Activating mutations | |||
|<span class="blue-text">EXAMPLE:</span> MAPK signaling | |||
|<span class="blue-text">EXAMPLE:</span> Increased cell growth and proliferation | |||
|- | |||
|<span class="blue-text">EXAMPLE:</span> ''CDKN2A''; Inactivating mutations | |||
|<span class="blue-text">EXAMPLE:</span> Cell cycle regulation | |||
|<span class="blue-text">EXAMPLE:</span> Unregulated cell division | |||
|- | |||
|<span class="blue-text">EXAMPLE:</span> ''KMT2C'' and ''ARID1A''; Inactivating mutations | |||
|<span class="blue-text">EXAMPLE:</span> Histone modification, chromatin remodeling | |||
|<span class="blue-text">EXAMPLE:</span> Abnormal gene expression program | |||
|- | |||
| | |||
| | |||
| | |||
|} | |||
==Epigenomic Alterations== | ==Epigenomic Alterations== | ||
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|Facilitate alternative lengthening of telomeres | |Facilitate alternative lengthening of telomeres | ||
|} | |} | ||
==Genetic Diagnostic Testing Methods== | ==Genetic Diagnostic Testing Methods== | ||
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*Pan-cancer sequencing will likely detect concurrent mutations in ''TP53, ATRX, PDGFRA'' etc. | *Pan-cancer sequencing will likely detect concurrent mutations in ''TP53, ATRX, PDGFRA'' etc. | ||
*DNA methylation and gene expression profiling can be used to differentiate G34-DHG with other glioma subgroups. | *DNA methylation and gene expression profiling can be used to differentiate G34-DHG with other glioma subgroups. | ||
*''MGMT'' promoter methylation can be assessed by methylation specific polymerase chain reaction analysis (bisulfite treated DNA undergoes real-time PCR) | *''MGMT'' promoter methylation can be assessed by methylation specific polymerase chain reaction analysis (bisulfite treated DNA undergoes real-time PCR) | ||
==Familial Forms== | ==Familial Forms== | ||
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This disease is <u>defined/characterized</u> as detailed below: | This disease is <u>defined/characterized</u> as detailed below: | ||
* Diffuse hemispheric glioma, H3 G34–mutant (G34-DHG) is a newly recognized tumor entity that is characterized by point mutations in the ''H3-3A'' (''H3-3A'') gene, encoding for histone variant H3.3 <ref name=":0">{{Cite journal|last=Schwartzentruber|first=Jeremy|last2=Korshunov|first2=Andrey|last3=Liu|first3=Xiao-Yang|last4=Jones|first4=David T. W.|last5=Pfaff|first5=Elke|last6=Jacob|first6=Karine|last7=Sturm|first7=Dominik|last8=Fontebasso|first8=Adam M.|last9=Quang|first9=Dong-Anh Khuong|date=2012-01-29|title=Driver mutations in histone H3.3 and chromatin remodelling genes in paediatric glioblastoma|url=https://pubmed.ncbi.nlm.nih.gov/22286061|journal=Nature|volume=482|issue=7384|pages=226–231|doi=10.1038/nature10833|issn=1476-4687|pmid=22286061}}</ref><ref>{{Cite journal|last=Wu|first=Gang|last2=Broniscer|first2=Alberto|last3=McEachron|first3=Troy A.|last4=Lu|first4=Charles|last5=Paugh|first5=Barbara S.|last6=Becksfort|first6=Jared|last7=Qu|first7=Chunxu|last8=Ding|first8=Li|last9=Huether|first9=Robert|date=2012-01-29|title=Somatic histone H3 alterations in pediatric diffuse intrinsic pontine gliomas and non-brainstem glioblastomas|url=https://pubmed.ncbi.nlm.nih.gov/22286216|journal=Nature Genetics|volume=44|issue=3|pages=251–253|doi=10.1038/ng.1102|issn=1546-1718|pmc=3288377|pmid=22286216}}</ref>. Point mutations tend to be clustered at codon 34 including c.103G>A p.G35R (G34R), c.103G>C p.G35R (G34R), or rarely c.104G>T p.G35V (G34V) <ref name=":0" />. This distinct tumor entity is an aggressive glioma arising from the cerebral hemispheres. G34-DHG is designated as CNS WHO grade 4 in in the WHO 5th edition <ref name=":3" />. | *Diffuse hemispheric glioma, H3 G34–mutant (G34-DHG) is a newly recognized tumor entity that is characterized by point mutations in the ''H3-3A'' (''H3-3A'') gene, encoding for histone variant H3.3 <ref name=":0">{{Cite journal|last=Schwartzentruber|first=Jeremy|last2=Korshunov|first2=Andrey|last3=Liu|first3=Xiao-Yang|last4=Jones|first4=David T. W.|last5=Pfaff|first5=Elke|last6=Jacob|first6=Karine|last7=Sturm|first7=Dominik|last8=Fontebasso|first8=Adam M.|last9=Quang|first9=Dong-Anh Khuong|date=2012-01-29|title=Driver mutations in histone H3.3 and chromatin remodelling genes in paediatric glioblastoma|url=https://pubmed.ncbi.nlm.nih.gov/22286061|journal=Nature|volume=482|issue=7384|pages=226–231|doi=10.1038/nature10833|issn=1476-4687|pmid=22286061}}</ref><ref>{{Cite journal|last=Wu|first=Gang|last2=Broniscer|first2=Alberto|last3=McEachron|first3=Troy A.|last4=Lu|first4=Charles|last5=Paugh|first5=Barbara S.|last6=Becksfort|first6=Jared|last7=Qu|first7=Chunxu|last8=Ding|first8=Li|last9=Huether|first9=Robert|date=2012-01-29|title=Somatic histone H3 alterations in pediatric diffuse intrinsic pontine gliomas and non-brainstem glioblastomas|url=https://pubmed.ncbi.nlm.nih.gov/22286216|journal=Nature Genetics|volume=44|issue=3|pages=251–253|doi=10.1038/ng.1102|issn=1546-1718|pmc=3288377|pmid=22286216}}</ref>. Point mutations tend to be clustered at codon 34 including c.103G>A p.G35R (G34R), c.103G>C p.G35R (G34R), or rarely c.104G>T p.G35V (G34V) <ref name=":0" />. This distinct tumor entity is an aggressive glioma arising from the cerebral hemispheres. G34-DHG is designated as CNS WHO grade 4 in in the WHO 5th edition <ref name=":3" />. | ||
* Please note that historically, numbering of the amino acid sequences of histone genes has begun at the second codon, as the amino acid encoded by the first codon (methionine) is cleaved post-translationally. Therefore, H3.3 G34 represents the legacy nomenclature of what is now referred to as H3.3 G35 <ref>{{Cite journal|last=Leske|first=Henning|last2=Dalgleish|first2=Raymond|last3=Lazar|first3=Alexander J.|last4=Reifenberger|first4=Guido|last5=Cree|first5=Ian A.|date=2021-06|title=A common classification framework for histone sequence alterations in tumours: an expert consensus proposal|url=https://pubmed.ncbi.nlm.nih.gov/33779999|journal=The Journal of Pathology|volume=254|issue=2|pages=109–120|doi=10.1002/path.5666|issn=1096-9896|pmid=33779999}}</ref>. | *Please note that historically, numbering of the amino acid sequences of histone genes has begun at the second codon, as the amino acid encoded by the first codon (methionine) is cleaved post-translationally. Therefore, H3.3 G34 represents the legacy nomenclature of what is now referred to as H3.3 G35 <ref>{{Cite journal|last=Leske|first=Henning|last2=Dalgleish|first2=Raymond|last3=Lazar|first3=Alexander J.|last4=Reifenberger|first4=Guido|last5=Cree|first5=Ian A.|date=2021-06|title=A common classification framework for histone sequence alterations in tumours: an expert consensus proposal|url=https://pubmed.ncbi.nlm.nih.gov/33779999|journal=The Journal of Pathology|volume=254|issue=2|pages=109–120|doi=10.1002/path.5666|issn=1096-9896|pmid=33779999}}</ref>. | ||
The <u>epidemiology/prevalence</u> of this disease is detailed below: | The <u>epidemiology/prevalence</u> of this disease is detailed below: | ||
* G34-DHG is reported to account for approximately 15% of high grade gliomas (HGSs) and typically affect adolescents and young adults with a median age at diagnosis of 15.8 years old <ref>{{Cite journal|last=Picart|first=Thiébaud|last2=Barritault|first2=Marc|last3=Poncet|first3=Delphine|last4=Berner|first4=Lise-Prune|last5=Izquierdo|first5=Cristina|last6=Tabouret|first6=Emeline|last7=Figarella-Branger|first7=Dominique|last8=Idbaïh|first8=Ahmed|last9=Bielle|first9=Franck|date=2021-01|title=Characteristics of diffuse hemispheric gliomas, H3 G34-mutant in adults|url=https://pubmed.ncbi.nlm.nih.gov/34056608|journal=Neuro-Oncology Advances|volume=3|issue=1|pages=vdab061|doi=10.1093/noajnl/vdab061|issn=2632-2498|pmc=8156974|pmid=34056608}}</ref><ref name=":1" />. Studies have shown that there is a gender difference with male to female ratio of 1.4:1 <ref name=":4" /><ref>{{Cite journal|last=Mackay|first=Alan|last2=Burford|first2=Anna|last3=Carvalho|first3=Diana|last4=Izquierdo|first4=Elisa|last5=Fazal-Salom|first5=Janat|last6=Taylor|first6=Kathryn R.|last7=Bjerke|first7=Lynn|last8=Clarke|first8=Matthew|last9=Vinci|first9=Mara|date=2017-10-09|title=Integrated Molecular Meta-Analysis of 1,000 Pediatric High-Grade and Diffuse Intrinsic Pontine Glioma|url=https://pubmed.ncbi.nlm.nih.gov/28966033|journal=Cancer Cell|volume=32|issue=4|pages=520–537.e5|doi=10.1016/j.ccell.2017.08.017|issn=1878-3686|pmc=5637314|pmid=28966033}}</ref>. | *G34-DHG is reported to account for approximately 15% of high grade gliomas (HGSs) and typically affect adolescents and young adults with a median age at diagnosis of 15.8 years old <ref>{{Cite journal|last=Picart|first=Thiébaud|last2=Barritault|first2=Marc|last3=Poncet|first3=Delphine|last4=Berner|first4=Lise-Prune|last5=Izquierdo|first5=Cristina|last6=Tabouret|first6=Emeline|last7=Figarella-Branger|first7=Dominique|last8=Idbaïh|first8=Ahmed|last9=Bielle|first9=Franck|date=2021-01|title=Characteristics of diffuse hemispheric gliomas, H3 G34-mutant in adults|url=https://pubmed.ncbi.nlm.nih.gov/34056608|journal=Neuro-Oncology Advances|volume=3|issue=1|pages=vdab061|doi=10.1093/noajnl/vdab061|issn=2632-2498|pmc=8156974|pmid=34056608}}</ref><ref name=":1" />. Studies have shown that there is a gender difference with male to female ratio of 1.4:1 <ref name=":4" /><ref>{{Cite journal|last=Mackay|first=Alan|last2=Burford|first2=Anna|last3=Carvalho|first3=Diana|last4=Izquierdo|first4=Elisa|last5=Fazal-Salom|first5=Janat|last6=Taylor|first6=Kathryn R.|last7=Bjerke|first7=Lynn|last8=Clarke|first8=Matthew|last9=Vinci|first9=Mara|date=2017-10-09|title=Integrated Molecular Meta-Analysis of 1,000 Pediatric High-Grade and Diffuse Intrinsic Pontine Glioma|url=https://pubmed.ncbi.nlm.nih.gov/28966033|journal=Cancer Cell|volume=32|issue=4|pages=520–537.e5|doi=10.1016/j.ccell.2017.08.017|issn=1878-3686|pmc=5637314|pmid=28966033}}</ref>. | ||
The <u>clinical features</u> of this disease are detailed below: | The <u>clinical features</u> of this disease are detailed below: | ||
* Site dependent neurological symptoms including epileptic seizure, focal deficit, increased intracranial hypertension (headache, nausea and vomiting) <ref>{{Cite journal|last=Picart|first=Thiébaud|last2=Barritault|first2=Marc|last3=Poncet|first3=Delphine|last4=Berner|first4=Lise-Prune|last5=Izquierdo|first5=Cristina|last6=Tabouret|first6=Emeline|last7=Figarella-Branger|first7=Dominique|last8=Idbaïh|first8=Ahmed|last9=Bielle|first9=Franck|date=2021|title=Characteristics of diffuse hemispheric gliomas, H3 G34-mutant in adults|url=https://pubmed.ncbi.nlm.nih.gov/34056608|journal=Neuro-Oncology Advances|volume=3|issue=1|pages=vdab061|doi=10.1093/noajnl/vdab061|issn=2632-2498|pmc=8156974|pmid=34056608}}</ref>. | *Site dependent neurological symptoms including epileptic seizure, focal deficit, increased intracranial hypertension (headache, nausea and vomiting) <ref>{{Cite journal|last=Picart|first=Thiébaud|last2=Barritault|first2=Marc|last3=Poncet|first3=Delphine|last4=Berner|first4=Lise-Prune|last5=Izquierdo|first5=Cristina|last6=Tabouret|first6=Emeline|last7=Figarella-Branger|first7=Dominique|last8=Idbaïh|first8=Ahmed|last9=Bielle|first9=Franck|date=2021|title=Characteristics of diffuse hemispheric gliomas, H3 G34-mutant in adults|url=https://pubmed.ncbi.nlm.nih.gov/34056608|journal=Neuro-Oncology Advances|volume=3|issue=1|pages=vdab061|doi=10.1093/noajnl/vdab061|issn=2632-2498|pmc=8156974|pmid=34056608}}</ref>. | ||
* Signs and symptoms - epileptic seizure, focal deficit, increased intracranial hypertension | *Signs and symptoms - epileptic seizure, focal deficit, increased intracranial hypertension | ||
The <u>sites of involvement</u> of this disease are detailed below: | The <u>sites of involvement</u> of this disease are detailed below: | ||
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(use the "Cite" icon at the top of the page) <span style="color:#0070C0">(''Instructions: Add each reference into the text above by clicking where you want to insert the reference, selecting the “Cite” icon at the top of the wiki page, and using the “Automatic” tab option to search by PMID to select the reference to insert. If a PMID is not available, such as for a book, please use the “Cite” icon, select “Manual” and then “Basic Form”, and include the entire reference. To insert the same reference again later in the page, select the “Cite” icon and “Re-use” to find the reference; DO NOT insert the same reference twice using the “Automatic” tab as it will be treated as two separate references. The reference list in this section will be automatically generated and sorted''</span><span style="color:#0070C0">''.''</span><span style="color:#0070C0">)</span> | (use the "Cite" icon at the top of the page) <span style="color:#0070C0">(''Instructions: Add each reference into the text above by clicking where you want to insert the reference, selecting the “Cite” icon at the top of the wiki page, and using the “Automatic” tab option to search by PMID to select the reference to insert. If a PMID is not available, such as for a book, please use the “Cite” icon, select “Manual” and then “Basic Form”, and include the entire reference. To insert the same reference again later in the page, select the “Cite” icon and “Re-use” to find the reference; DO NOT insert the same reference twice using the “Automatic” tab as it will be treated as two separate references. The reference list in this section will be automatically generated and sorted''</span><span style="color:#0070C0">''.''</span><span style="color:#0070C0">)</span><references /> | ||
==Notes== | ==Notes== | ||
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[[Category:DISEASE]] | [[Category:DISEASE]] | ||
[[Category:Diseases D]] | [[Category:Diseases D]] | ||