BibTex format
@article{Yip:2003:10.1016/s0015-0282(03)02174-5,
author = {Yip, S-K and Sahota, D and Lok, IH},
doi = {10.1016/s0015-0282(03)02174-5},
journal = {Fertil Steril},
title = {Amount of error in a measurement? ....reliability.},
url = {http://dx.doi.org/10.1016/s0015-0282(03)02174-5},
volume = {80},
year = {2003}
}