[Patriot, scientist, activist (on the 100th anniversary of the birth of D. K. Zabolotnyĭ)].
D004813:Epidemiology / Q000266:history; D049672:History, 19th Century; D049673:History, 20th Century; D008829:Microbiology / Q000266:history; D011635:Public Health Administration / Q000266:history*; D012425:Russia (Pre-1917); D014586:USSR
Patriot, uchenyĩ, podvizhnik (k stoletiiu so dnia rozhdeniia D. K. Zabolotnogo)