title: [Professor B. A. Zenin (on his 50th birthday)].
mesh_terms: D003880:Dermatology / Q000266:history; D049673:History, 20th Century; D012749:Sexually Transmitted Diseases / Q000266:history; D014586:USSR
vernacular_title: Prof. B. A. Zenin (k 50-letiiu so dnia rozhdeniia)