@article{doi:10.1001/jama.1939.72800500004009c,
author = {Daniel WA and Jr. and Egan S},
title = {THe quantity of blood required to produce a tarry stool},
journal = {Journal of the American Medical Association},
volume = {113},
number = {25},
pages = {2232},
year = {1939},
doi = {10.1001/jama.1939.72800500004009c},
URL = { + http://dx.doi.org/10.1001/jama.1939.72800500004009c},
eprint = {/data/Journals/JAMA/7414/jama_113_25_009c.pdf}
}