title: Comments on the article by Conaghan et al.
authors.forename: S
authors.initials: S
authors.lastname: Endenburg
authors.forename: S
authors.initials: S
authors.lastname: Konings
authors.forename: S P J
authors.initials: SP
authors.lastname: Verkleij
mesh_terms: D000082:Acetaminophen / Q000008:administration & dosage*; D000700:Analgesics / Q000008:administration & dosage*; D002047:Buprenorphine / Q000008:administration & dosage*; D003061:Codeine / Q000008:administration & dosage*; D005260:Female; D006801:Humans; D008297:Male; D015207:Osteoarthritis, Hip / Q000188:drug therapy*; D020370:Osteoarthritis, Knee / Q000188:drug therapy*
chemical_list: D000700:Analgesics; D000082:Acetaminophen; D002047:Buprenorphine; D003061:Codeine