A cardiovascular rating as a measure of physical fatigue and efficiency. 1920.
Schneider
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EC
D000337:Aerospace Medicine / Q000266:history; D002309:Cardiology / Q000266:history; D005221:Fatigue / Q000175:diagnosis / Q000266:history*; D006439:Hemodynamics; D049673:History, 20th Century; D006801:Humans; D010809:Physical Fitness / Q000502:physiology*