title: Classification controversies in relation to fibromyalgia syndrome.
authors.forename: Mike
authors.initials: M
authors.lastname: Butler
mesh_terms: D005356:Fibromyalgia / Q000145:classification / Q000175:diagnosis / Q000523:psychology; D006801:Humans; D011788:Quality of Life; D018434:Sickness Impact Profile; D013577:Syndrome