title: Measuring pain intensity in headache trials: which scale to use?
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Loder
authors.forename: Rebecca
authors.initials: R
authors.lastname: Burch
mesh_terms: D000700:Analgesics / Q000627:therapeutic use*; D005260:Female; D006261:Headache / Q000188:drug therapy*; D006801:Humans; D008297:Male; D010147:Pain Measurement / Q000379:methods* / Q000592:standards*
chemical_list: D000700:Analgesics