@article{doi:, author = {Avtan, Levent}, title = {Laparoscopic and bile duct interventions choledoch exploration}, journal = {Laparosc Endosc Surg Sci }, volume = {2}, number = {4}, pages = {135-140}, year = {1995}, doi = {}, note ={doi: }, URL = {https://dx.doi.org/}, eprint = {https://dx.doi.org/} }