A hidden dimension in headache work: applied history of medicine.
D015670:Acupuncture Therapy / Q000266:history; D000700:Analgesics / Q000009:adverse effects; D004878:Ergotamine / Q000009:adverse effects; D006261:Headache / Q000209:etiology / Q000266:history* / Q000628:therapy; D049670:History, 17th Century; D049671:History, 18th Century; D049673:History, 20th Century; D006801:Humans; D008881:Migraine Disorders / Q000209:etiology / Q000266:history; D019966:Substance-Related Disorders / Q000150:complications / Q000266:history
D000700:Analgesics; D004878:Ergotamine