[Nikolaĭ Nikolaevich Petrov (1876-1964)].
Zaĭtsev
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EI
D013502:General Surgery / Q000266:history*; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D008495:Medical Oncology / Q000266:history*; D012426:Russia; D012955:Societies, Medical / Q000266:history