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[Contribution of military doctor Roman S. Chetyrkin in the formation and development of medicine in Russia].

The article deals with an extensive and diverse activities of prominent military doctor Roman Sergeyevich Chetyrkin, who contributed greatly to the development of hygiene and epidemiology in Russia. He had a lot of merit as a talented organizer of military and civilian health care. Special attention is paid to the Chetyrkin's contribution to the development of military medical expertise because of his works in this direction are fundamental for this science.