title: Methodological issues in psychiatric classification.
authors.affiliation: Institute of Neurology, Psychiatry and Neurosurgery, Medical Academy, Sofia, Bulgaria.
authors.forename: A
authors.initials: A
authors.lastname: Jablensky
mesh_terms: D003071:Cognition; D006801:Humans; D001523:Mental Disorders / Q000145:classification*; D008722:Methods; D019965:Neurocognitive Disorders / Q000145:classification; D011618:Psychotic Disorders / Q000145:classification