[Anniversary of the 1st chair of roentgenology].
D049672:History, 19th Century; D049673:History, 20th Century; D011859:Radiography / Q000266:history*; D012426:Russia; D012425:Russia (Pre-1917); D012577:Schools, Medical / Q000266:history*
Iubileĭ pervoĭ kafedry.