title: [Nikolaĭ Nikhaĭlovich Ovchinnikov].
mesh_terms: D003880:Dermatology / Q000266:history; D049672:History, 19th Century; D049673:History, 20th Century; D009031:Moscow; D012749:Sexually Transmitted Diseases / Q000266:history
vernacular_title: Nikolaĭ Mikhaĭlovich Ovchinnikov.