title: [A memorable date (on the 90th birthday of professor S. N. Rozanov)].
mesh_terms: D003140:Communicable Disease Control / Q000266:history; D049673:History, 20th Century; D010372:Pediatrics / Q000266:history; D014586:USSR
vernacular_title: Slavnyĭ iubileĭ (k 90-letiiu so dnia rozhdeniia prof. S. N. Rozanova)