title: Clinical research: learning right from wrong.
authors: J J
authors: JJ
authors: Marbach
mesh_terms: D002986:Clinical Trials as Topic / Q000379:methods*; D005157:Facial Pain / Q000209:etiology; D006261:Headache / Q000209:etiology; D006801:Humans; D012107:Research Design; D013706:Temporomandibular Joint Dysfunction Syndrome / Q000150:complications