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Clinical Epidemiology: PDF Only

SIDNEY STEPHEN; STERNFELD, BARBARA; GIDDING, SAMUEL S.; JACOBS, DAVID R. JR; BILD, DIANE E.; OBERMAN, ALBERT; HASKELL, WILLIAM L.; CROW, RICHARD S.; GARDIN, JULIUS M.
Medicine & Science in Sports & Exercise: August 1993 - p 911-916
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Abstract