AU  - Hartley L, Herd J, Day WC, Abusamra J, Howes B
TI  - AN exercise testing program for large populations
PT  - JOUR
DP  - 1979
TA  - JAMA
pages = {269-271},
VI  - 241
IP  - 3
AID  - 10.1001/jama.1979.03290290037022 [doi]
4100  - http://dx.doi.org/10.1001/jama.1979.03290290037022
SO  - JAMA January 19, 1979 241(3):269