title: [E.N. Meshalkin (on his 50th birthday)].
mesh_terms: D001706:Biopsy / Q000266:history; D002309:Cardiology / Q000266:history; D013502:General Surgery / Q000266:history; D049673:History, 20th Century; D014586:USSR
vernacular_title: E.N. Meshalkin (K 50-letiiu so dnia rozhdenniia)