title: [Boris Dmitrievich Petrov (on his 70th birthday)].
mesh_terms: D006666:History of Medicine; D049673:History, 20th Century; D011634:Public Health / Q000266:history; D012425:Russia (Pre-1917); D014586:USSR
vernacular_title: Boris Dmitrievich Petrov (k 70-letiiu so dnia rozhdeniia.