Soldatos, C R Insomnia in relation to depression and anxiety: epidemiologic considerations. [electronic resource] - Journal of psychosomatic research 1994 - 3-8 p. digital Publication Type: Journal Article; Review ISSN: 0022-3999 Standard No.: 10.1016/0022-3999(94)90130-9 doi Subjects--Topical Terms: Anxiety Disorders--diagnosisCross-Sectional StudiesDepressive Disorder--diagnosisHumansIncidencePsychopathologyRisk FactorsSleep Initiation and Maintenance Disorders--diagnosis