TI  - Surgeon general's workshop on health promotion and aging: Summary recommendations of physical fitness and exercise working group
PT  - JOUR
DP  - 1989
TA  - JAMA
pages = {2507-2510},
VI  - 262
IP  - 18
AID  - 10.1001/jama.1989.03430180033007 [doi]
4100  - http://dx.doi.org/10.1001/jama.1989.03430180033007
SO  - JAMA November 10, 1989 262(18):2507