@article{doi:10.1001/archinte.1939.00190060108007, author = {SCHIFF L and STEVENS RJ}, title = {ELevation of urea nitrogen content of the blood following hematemesis or melena}, journal = {Archives of Internal Medicine}, volume = {64}, number = {6}, pages = {1239-1251}, year = {1939}, doi = {10.1001/archinte.1939.00190060108007}, URL = { + http://dx.doi.org/10.1001/archinte.1939.00190060108007}, eprint = {/data/Journals/INTEMED/14453/archinte_64_6_007.pdf} }