1. Physical activity, all-cause mortality, and longevity of college alumni;Paffenbarger, R.S.; Hyde, R.T.; Wing, A.L.;N Engi JMed,1986
2. Exercise and health;Haskell, W.L.,1988
3. Running, osteoarthritis and bone density;Lane, N.E.; Bloch, D.A.; Jones, H.H.; Fries, J.F.,1986
4. Is running associated with degenerative joint disease?;Panush, R.S.; Schmidt, C.; Caldwell, JR, Edwards; NL, Longley; S, Yonker; L.;JAMA,1986
5. Running and osteoarthritis of the hip;Puramen, J.; Ala Ketola, L.; PeltokuLlio, P.; Saarela, J.; Marshall, W.H.; Wood, P.J.;BMJ,1975