title: Waddell signs: objectifying pain and the limits of medical altruism.
authors.forename: Rollin M
authors.initials: RM
authors.lastname: Gallagher
mesh_terms: D000533:Altruism; D001416:Back Pain / Q000601:surgery; D002908:Chronic Disease; D006801:Humans; D008950:MMPI; D010146:Pain / Q000503:physiopathology / Q000523:psychology*; D010147:Pain Measurement; D011237:Predictive Value of Tests; D016896:Treatment Outcome