@article{doi:10.1001/archinte.161.11.1393, author = {Spiegel BR and Vakil NB and Ofman JJ}, title = {Endoscopy for acute nonvariceal upper gastrointestinal tract hemorrhage: Is sooner better?: a systematic review}, journal = {Archives of Internal Medicine}, volume = {161}, number = {11}, pages = {1393-1404}, year = {2001}, doi = {10.1001/archinte.161.11.1393}, URL = { + http://dx.doi.org/10.1001/archinte.161.11.1393}, eprint = {/data/Journals/INTEMED/11986/ira00052.pdf} }