@article{doi:10.1001/jama.1939.02800380034010,
author = {COLE L and COLE W},
title = {Dyspnea of silicosis: What causes it?},
journal = {Journal of the American Medical Association},
volume = {113},
number = {13},
pages = {1216-1221},
year = {1939},
doi = {10.1001/jama.1939.02800380034010},
URL = { + http://dx.doi.org/10.1001/jama.1939.02800380034010},
eprint = {/data/Journals/JAMA/7345/jama_113_13_010.pdf}
}