[Addition to the historical survey of the activities of N. A. Semashko (on the 50th anniversary of Soviet social hygiene)].
D001382:Azerbaijan; D049673:History, 20th Century; D012936:Social Medicine / Q000266:history*; D014586:USSR
Stranitsa k istoricheskomu obzoru deiatel'nosti N. A. Semashko (k 50-letiiu sovetskoi sotsial'noi gigieny.