Snow shoveling: The cold facts.
D006331:Heart Diseases / Q000150:complications / Q000517:prevention & control*; D006801:Humans; D007537:Isometric Contraction / Q000502:physiology; D008297:Male; D008571:Men / Q000523:psychology; D005082:Physical Exertion; D011187:Posture; D012914:Snow