title: Secondary insomnia: a myth dismissed.
authors.forename: Kenneth L
authors.initials: KL
authors.lastname: Lichstein
mesh_terms: D003863:Depression / Q000175:diagnosis / Q000209:etiology* / Q000523:psychology*; D003937:Diagnosis, Differential; D006801:Humans; D007319:Sleep Initiation and Maintenance Disorders / Q000175:diagnosis / Q000209:etiology* / Q000523:psychology*