@misc{indiciae971012edf456, title = {Laparoscopic cholecystectomy.}, author = {M Emberton and R Howerton}, year = {1992}, doi = {10.1136/bmj.304.6829.777-a}, url = {https://pubmed.ncbi.nlm.nih.gov/1533331/}, note = {Source identifier: 1533331} }