title: [Igor' Andreevich Piontkovskiĭ].
mesh_terms: D049673:History, 20th Century; D010336:Pathology / Q000266:history; D010827:Physiology / Q000266:history; D012426:Russia; D012425:Russia (Pre-1917)
vernacular_title: Igor' Andreevich Piontkovskiĭ.