@article{Jena2011,
author = {Jena, A.B. and Goldman, D.P. and Joyce, G.},
title= {Association between the birth of twins and parental divorce},
year = {2011},
doi = {10.1097/AOG.0b013e3182102adf},
volume = {117},
number = {4},
pages = {892--897},
}