[The 75th anniversary of the Povolzhe Conference I concerning diphtheria control in Russia].
D003226:Congresses as Topic / Q000266:history*; D004165:Diphtheria / Q000266:history* / Q000517:prevention & control; D049672:History, 19th Century; D006801:Humans; D012425:Russia (Pre-1917)
K 75-letiiu I Povolzhe s"ezda po bor'be s difteriei v Rossii.