TY  - RPRT
TI  - Issues surrounding laparoscopic cholecystectomy.
AU  - E Ullmann
PY  - 1991
DO  - 10.1016/s0001-2092(07)66881-1
UR  - https://pubmed.ncbi.nlm.nih.gov/1768077/
ID  - 1768077
ER  -