title: [Fedor Grigor'evich Krotkov (on his 90th birthday)].
mesh_terms: D049672:History, 19th Century; D049673:History, 20th Century; D008886:Military Hygiene / Q000266:history; D012425:Russia (Pre-1917); D014586:USSR
vernacular_title: Fedor Grigor'evich Krotkov (k 90-letiiu so dnia rozhdeniia).