title: [Nikolaĭ Borisovich Sitkovskiĭ (on his 60th birthday)].
mesh_terms: D013502:General Surgery / Q000266:history; D049673:History, 20th Century; D014455:Ukraine
vernacular_title: Nikolaĭ Borisovich Sitkovskiĭ (k 60-letiiu so dnia rozhdeniia)