[Main stages in the scientific and organizational activities of Petr Grigor'evich Sergiev (on his 85th birthday)].
D003140:Communicable Disease Control / Q000266:history; D049672:History, 19th Century; D049673:History, 20th Century; D010274:Parasitology / Q000266:history; D011635:Public Health Administration / Q000266:history; D012425:Russia (Pre-1917); D014586:USSR
Osnovnye étapy nauchnoi ĭ organizatsionnoĭ deiatel'nosti Petra Grigor'evicha Sergieva (k 85-letiiu so dnia rozhdeniia).