[A. N. Sysin--a leading Soviet hygienist and public health worker].
D049672:History, 19th Century; D049673:History, 20th Century; D006920:Hygiene / Q000266:history; D011315:Preventive Medicine / Q000266:history; D011634:Public Health / Q000266:history; D012425:Russia (Pre-1917); D014586:USSR
A. N. Sysin--vydaiushchiĭsia otechestvennyĭ gigienist i deiatel' zdravookhraneniia.