title: [Longitudinal study of research: 1975-2006].
authors.forename: M H
authors.initials: MH
authors.lastname: Schmidt
mesh_terms: D000293:Adolescent; D000296:Adolescent Psychiatry / Q000639:trends*; D002648:Child; D002665:Child Psychiatry / Q000639:trends*; D005180:Faculty, Medical / Q000592:standards*; D005858:Germany; D006801:Humans; D011643:Publishing / Q000639:trends*; D012106:Research / Q000639:trends*