BibTex format
@article{Guha:2013:humrep/det342,
author = {Guha, S and Van, Belle V and Bottomley, C and Preisler, J and Vathanan, V and Sayasneh, A and Stalder, C and Timmerman, D and Bourne, T},
doi = {humrep/det342},
journal = {HUMAN REPRODUCTION},
pages = {2905--2911},
title = {External validation of models and simple scoring systems to predict miscarriage in intrauterine pregnancies of uncertain viability},
url = {http://dx.doi.org/10.1093/humrep/det342},
volume = {28},
year = {2013}
}