@article{doi:10.1001/jama.1979.03290290037022,
author = {Hartley L and Herd J and Day WC and Abusamra J and Howes B},
title = {AN exercise testing program for large populations},
journal = {JAMA},
volume = {241},
number = {3},
pages = {269-271},
year = {1979},
doi = {10.1001/jama.1979.03290290037022},
URL = { + http://dx.doi.org/10.1001/jama.1979.03290290037022},
eprint = {/data/Journals/JAMA/8854/jama_241_3_022.pdf}
}