{"_id":"MONDO:0017181","_version":1,"ctd":{"chemical_related_to_disease":[{"cas_registry_number":"59-66-5","chemical_name":"Acetazolamide","direct_evidence":"therapeutic","mesh_chemical_id":"D000086","pubmed":"14581696","source":"CTD"},{"cas_registry_number":"50-48-6","chemical_name":"Amitriptyline","direct_evidence":"therapeutic","mesh_chemical_id":"D000639","pubmed":"19085181","source":"CTD"},{"cas_registry_number":"75847-73-3","chemical_name":"Enalapril","direct_evidence":"therapeutic","mesh_chemical_id":"D004656","pubmed":"17965960","source":"CTD"},{"cas_registry_number":"113-15-5","chemical_name":"Ergotamine","direct_evidence":"marker/mechanism","mesh_chemical_id":"D004878","pubmed":"19085181","source":"CTD"},{"chemical_name":"Excitatory Amino Acid Agonists","direct_evidence":"marker/mechanism","mesh_chemical_id":"D018690","pubmed":"15549577","source":"CTD"},{"cas_registry_number":"554-13-2","chemical_name":"Lithium Carbonate","direct_evidence":"therapeutic","mesh_chemical_id":"D016651","pubmed":"15536570","source":"CTD"},{"cas_registry_number":"364-62-5","chemical_name":"Metoclopramide","direct_evidence":"therapeutic","mesh_chemical_id":"D008787","pubmed":"19085181","source":"CTD"},{"cas_registry_number":"10102-43-9","chemical_name":"Nitric Oxide","direct_evidence":"marker/mechanism","mesh_chemical_id":"D009569","pubmed":"10960046","source":"CTD"},{"cas_registry_number":"55-63-0","chemical_name":"Nitroglycerin","direct_evidence":"marker/mechanism","mesh_chemical_id":"D005996","pubmed":"10960046","source":"CTD"},{"cas_registry_number":"51-41-2","chemical_name":"Norepinephrine","direct_evidence":"marker/mechanism","mesh_chemical_id":"D009638","pubmed":"15549577","source":"CTD"},{"cas_registry_number":"50-67-9","chemical_name":"Serotonin","direct_evidence":"marker/mechanism","mesh_chemical_id":"D012701","pubmed":"15549577","source":"CTD"}],"mesh":"D051270"},"mondo":{"ancestors":["MONDO:0700096","MONDO:0000001","MONDO:0005071","MONDO:0700057","MONDO:7770006","MONDO:0021146"],"children":["MONDO:0005277","MONDO:0015530"],"definition":"Conditions in which the primary symptom is headache and the headache cannot be attributed to any known causes. [MESH:D051270]","descendants":["MONDO:0100539","MONDO:0007344","MONDO:0000700","MONDO:0020757","MONDO:0015529","MONDO:0018925","MONDO:0100431","MONDO:0011232","MONDO:0012320","MONDO:0800335","MONDO:0005277","MONDO:0043537","MONDO:0015530","MONDO:0005475","MONDO:0043219","MONDO:0020756","MONDO:0018927","MONDO:0018615"],"label":"hypnic headache","mondo":"MONDO:0017181","parents":["MONDO:0021146"],"synonym":{"exact":["hypnic headache","hypnic headache (disease)"]},"xrefs":{"gard":["0010796"],"hp":["HP:0012459"],"icd10cm":["G44.81"],"icd11":["foundation:468065426"],"icd9":["339.81"],"medgen":["156012"],"mesh":["D051270"],"orphanet":["276429"],"sctid":["122711000119109"],"umls":["C0752150"]}},"original_id":["UMLS:C0752150","UMLS:C1565106"],"umls":[{"_license":"https://www.nlm.nih.gov/research/umls/knowledge_sources/metathesaurus/release/license_agreement.html","icd10cm":{"preferred":"G44.81"},"icd9cm":{"preferred":"339.81"},"mesh":{"non-preferred":"D051270","preferred":"D051270"},"snomed":{"non-preferred":"122711000119109","preferred":"122711000119109"},"umls":"C0752150"},{"_license":"https://www.nlm.nih.gov/research/umls/knowledge_sources/metathesaurus/release/license_agreement.html","mesh":{"preferred":"D051270"},"umls":"C1565106"}]}