@article{doi:10.1001/jama.1939.72800480004011,
author = {SNELL AM and BUTT HR},
title = {SUpplementary report on vitamin k},
journal = {Journal of the American Medical Association},
volume = {113},
number = {23},
pages = {2056-2059},
year = {1939},
doi = {10.1001/jama.1939.72800480004011},
URL = { + http://dx.doi.org/10.1001/jama.1939.72800480004011},
eprint = {/data/Journals/JAMA/7405/jama_113_23_011.pdf}
}