[Development of public health in the Chuvash SSR in the past and during the years of the Soviet rule].
D049673:History, 20th Century; D011634:Public Health / Q000266:history*; D012426:Russia; D012425:Russia (Pre-1917)
Razvitie zdravookhraneniia Chuvashii v proshlem i v gody sovetskoi vlasti.