[N. A. Semashko on the social hygiene importance of physical education].
D049672:History, 19th Century; D049673:History, 20th Century; D010806:Physical Education and Training / Q000266:history; D012425:Russia (Pre-1917); D012936:Social Medicine / Q000266:history; D014586:USSR
N. A. Semashko o sotsial'no-gigienicheskom znachenii fizicheskoĭ kul'tury