title: Change in frequency pattern in cluster headache induced by subcutaneous sumatriptan.
authors.forename: Vinod Kumar
authors.initials: VK
authors.lastname: Gupta
mesh_terms: D003027:Cluster Headache / Q000188:drug therapy*; D006801:Humans; D007279:Injections, Subcutaneous; D012008:Recurrence; D017366:Serotonin Receptor Agonists / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D018170:Sumatriptan / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*
chemical_list: D017366:Serotonin Receptor Agonists; D018170:Sumatriptan