title: [Nikolaĭ Alekseevich Zvonkov (on his 70th birthday)].
mesh_terms: D049673:History, 20th Century; D009493:Neurosurgery / Q000266:history; D012425:Russia (Pre-1917); D014586:USSR
vernacular_title: Nikolaĭ Alekseevich Zvonkov (k 70-letiiu so dnia rozhdeniia).