title: Delayed sleep phase syndrome and depression.
authors.forename: Masako
authors.initials: M
authors.lastname: Okawa
mesh_terms: D003866:Depressive Disorder / Q000453:epidemiology*; D006801:Humans; D015995:Prevalence; D020178:Sleep Disorders, Circadian Rhythm / Q000453:epidemiology* / Q000523:psychology*