@article{doi:,
author = {Uncu, Hakan and Aker, Yalçın and Yorulmaz, Ilginç and Sakarya, Aslan and Kaya, Yavuz and Çiftdogan, Cüneyt},
title = {Is the preoperative ultrasonograplty may be definitive in estimating the difficulty of laparoscopic cholecystectomy},
journal = {Laparosc Endosc Surg Sci },
volume = {5},
number = {3},
pages = {144-148},
year = {1998},
doi = {},
note ={doi: },

URL = {https://dx.doi.org/},
eprint = {https://dx.doi.org/}
}