title: What is the proper control group for a fibromyalgia study? Comment on the article by Loggia et al.
authors: Kent, CT.
authors: James H
authors: JH
authors: Lampman
mesh_terms: D001921:Brain / Q000503:physiopathology*; D005260:Female; D005356:Fibromyalgia / Q000503:physiopathology*; D006801:Humans; D006930:Hyperalgesia / Q000503:physiopathology*; D008297:Male; D010146:Pain / Q000503:physiopathology*; D011678:Punishment; D012201:Reward