@article{doi:10.1001/archsurg.1969.01340120079011,
author = {Beneventano TC and Schein CJ},
title = {THe pseudocalculus sign in cholangiography},
journal = {Archives of Surgery},
volume = {98},
number = {6},
pages = {731-733},
year = {1969},
doi = {10.1001/archsurg.1969.01340120079011},
URL = { + http://dx.doi.org/10.1001/archsurg.1969.01340120079011},
eprint = {/data/Journals/SURG/15480/archsurg_98_6_011.pdf}
}