[On the 90th anniversary of the birth of Petr Grigor'evich Sergiev (1893-1983)].
D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D008288:Malaria / Q000266:history; D010274:Parasitology / Q000266:history; D012425:Russia (Pre-1917); D014586:USSR
K 90-letiiu so dnia rozhdeniia Petra Grigor'evicha Sergieva (1983-1983).