title: [Professor Aleksandr Naumovich Ryzhikh (on his 70th birthday)].
mesh_terms: D003107:Colorectal Surgery / Q000266:history; D013502:General Surgery / Q000266:history; D049673:History, 20th Century; D012426:Russia
vernacular_title: Professor Aleksandr Naumovich Ryzhikh (k 70-letiiu so dnia rozhdeniia)