title: [Ivan Iosifovich Merkulov (on his 70th birthday)].
mesh_terms: D049673:History, 20th Century; D009462:Neurology / Q000266:history; D009885:Ophthalmology / Q000266:history; D012426:Russia
vernacular_title: Ivan Iosifovich Merkulov (k 70-letiiu so dnia rozhdeniia)