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To our knowledge, no previous long-term studies of the Leonhardean classification in the whole spectrum of endogenous psychoses have been conducted. This prospective study (n = 276; female patients n = 222; normal control persons n = 54) started in 1967–1976. The same population was followed-up by participation of a “blinded control” psychiatrist in 1997–2002 [patients available at follow-up = 125...
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