TY - GEN AU - S'Jongers,J J AU - Segers,M TI - [Beneficial and deleterious effects of physical effort on the heart and vessels] SN - 0068-3027 PY - 1969///0108 KW - Cardiovascular Diseases KW - Cardiovascular System KW - Humans KW - Physical Exertion N1 - Publication Type: Journal Article ER -