@article{doi:10.1001/jama.1929.02710060019005,
author = {DOUGLASS M},
title = {EArly diagnosis of pregnancy},
journal = {Journal of the American Medical Association},
volume = {93},
number = {6},
pages = {443-445},
year = {1929},
doi = {10.1001/jama.1929.02710060019005},
URL = { + http://dx.doi.org/10.1001/jama.1929.02710060019005},
eprint = {/data/Journals/JAMA/6758/jama_93_6_005.pdf}
}