[Zelenin--one of the introducers of clinical electrocardiography in Russia (the 125th anniversary of birth)].
Morozov
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D004562:Electrocardiography / Q000266:history*; D006331:Heart Diseases / Q000175:diagnosis / Q000266:history*; D049673:History, 20th Century; D006801:Humans; D007388:Internal Medicine / Q000266:history*; D012426:Russia