title: Challenges in the comorbid condition.
authors.forename: Thomas
authors.initials: T
authors.lastname: Roth
mesh_terms: D015897:Comorbidity; D006304:Health Status; D006801:Humans; D001523:Mental Disorders / Q000175:diagnosis / Q000453:epidemiology* / Q000628:therapy; D011788:Quality of Life; D012893:Sleep Wake Disorders / Q000175:diagnosis / Q000453:epidemiology* / Q000628:therapy