@misc{indiciae671e63061713, title = {Issues surrounding laparoscopic cholecystectomy.}, author = {E Ullmann}, year = {1991}, doi = {10.1016/s0001-2092(07)66881-1}, url = {https://pubmed.ncbi.nlm.nih.gov/1768077/}, note = {Source identifier: 1768077} }