title: [On the 75th birthday of Prof. D. N. Kaliuzhnyĭ].
mesh_terms: D049673:History, 20th Century; D011634:Public Health / Q000266:history; D012425:Russia (Pre-1917); D014586:USSR
vernacular_title: K 75-letiiu so dnia rozhdeniia prof. D. N. Kaliuzhnogo