title: Heart rate, blood pressure, and electrocardiographic changes during provoked attacks of cluster headache.
mesh_terms: D000328:Adult; D001794:Blood Pressure / Q000187:drug effects*; D004562:Electrocardiography; D006261:Headache / Q000139:chemically induced* / Q000150:complications; D006339:Heart Rate / Q000187:drug effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D005996:Nitroglycerin / Q000494:pharmacology*; D010507:Periodicity; D013997:Time Factors
chemical_list: D005996:Nitroglycerin