title: [Aleksandr Afanas'evich Nechaev (on the 50th anniversary of his death)].
mesh_terms: D049672:History, 19th Century; D049673:History, 20th Century; D007388:Internal Medicine / Q000266:history; D012425:Russia (Pre-1917); D012577:Schools, Medical / Q000266:history; D014586:USSR
vernacular_title: Aleksandr Afanas'evich Nechaev (k 50-letiiu so dnia smerti.