@article{doi:,
author = {},
title = {Contents},
journal = {Laparosc Endosc Surg Sci },
volume = {11},
number = {2},
pages = {52-53},
year = {2004},
doi = {},
note ={doi: },

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