@article{Choi2009,
author = {Choi, Y. and Bishai, D. and Minkovitz, C.S.},
title= {Multiple births are a risk factor for postpartum maternal depressive symptoms},
year = {2009},
doi = {10.1542/peds.2008-1619},
volume = {123},
number = {4},
pages = {1147--1154},
}