1. Aerobic work capacity in men and women with special reference to age;Åstrand;Acta Physiol. Scand.,1960
2. Physical fitness levels vs selected coronary risk factors: A cross-sectional study;Cooper;JAMA,1976
3. Risk factors in young adults: The lessons from epidemiologic studies of cardiovascular disease: Framingham, Tecumseh, and Evans County;Dawber;J. Amer. Coll. Health Assoc.,1973
4. BMDP Statistical Software,1983