[Etiology of internal organ diseases].

The authors discuss I.V. Davydovsky's views expounded in his book "Problems of causality in medicine, Etiology" (1962) where the philosophical method was applied for the first time for the solution of fundamental problems of medicine, such as etiology and pathogenesis. The main provisions of Davydovsky's concept of etiology of internal organ diseases are considered, an attempt is undertaken to develop and apply them in the present-day context.