[Professor Felix Stanislavovich Okolov (100th anniversary of his birthday)].
Nikolov
S Kh
SKh
Nefedov
P V
PV
D049673:History, 20th Century; D006920:Hygiene / Q000266:history; D007388:Internal Medicine / Q000266:history; D012425:Russia (Pre-1917); D012499:Sanitation / Q000266:history; D014586:USSR