title: [Prof. O.V. Nikolaev (on his 70th birthday)].
mesh_terms: D013502:General Surgery / Q000266:history; D049673:History, 20th Century; D014586:USSR
vernacular_title: Zasluzhennyĭ deiatel' nauki professor O.V. Nikolaev (k 70-letiiu so dnia rozhdeniia.