@article{doi:10.1001/jama.1939.62800020001008a,
author = {Friedman L},
title = {A method for the dark field examination of pus for spirochaeta pallida},
journal = {Journal of the American Medical Association},
volume = {112},
number = {2},
pages = {134-135},
year = {1939},
doi = {10.1001/jama.1939.62800020001008a},
URL = { + http://dx.doi.org/10.1001/jama.1939.62800020001008a},
eprint = {/data/Journals/JAMA/7109/jama_112_2_008a.pdf}
}