1. The influence of physical activity on incidence and prognosis of ischemic heart disease;Brunner,1966
2. Physical inactivity as a lethal factor in myocardial infarction among men;Frank;Circulation,1969
3. The relation of physical activity to risk of coronary heart disease. The Framingham study;Kannel,1971
4. Sport and physical capacity for work;Kirjonen,1974