title: [In memory of Oleg Leonidovich Tiktinskij (1928-2015)].
mesh_terms: D049673:History, 20th Century; D049674:History, 21st Century; D012426:Russia; D012577:Schools, Medical / Q000266:history; D014572:Urology / Q000193:education / Q000266:history* / Q000458:organization & administration