title: [Pavel Sergeevich Usov (1867-1917)].
mesh_terms: D013502:General Surgery / Q000266:history; D049672:History, 19th Century; D049673:History, 20th Century; D007388:Internal Medicine / Q000266:history; D012425:Russia (Pre-1917)
vernacular_title: Pavel Sergeevich Usov (1867-1917)