[Petr Vasil'evich Kozhevnikov].
D003880:Dermatology / Q000266:history; D049672:History, 19th Century; D049673:History, 20th Century; D012425:Russia (Pre-1917); D012749:Sexually Transmitted Diseases / Q000266:history; D014586:USSR
Petr Vasil'evich Kozhevnikov.