title: [Petr Vasil'evich Nikol'skii (on the 125th anniversary of his birth)].
mesh_terms: D003880:Dermatology / Q000266:history*; D049672:History, 19th Century; D049673:History, 20th Century; D012425:Russia (Pre-1917); D014586:USSR
vernacular_title: Petr Vasil'evich Nikol'skiĭ (k 125-letiiu so dnia rozhdeniia).