title: [Sergeĭ Alekseevich Sleznev (on his 50th birthday)].
mesh_terms: D049673:History, 20th Century; D010336:Pathology / Q000266:history; D010827:Physiology; D014586:USSR
vernacular_title: Sergeĭ Alekseevich Sleznev (k piatidesiatiletiiu so dnia rozhdeniia)