@article{Ichikawa2015,
author = {Ichikawa, L. and Hubbard, R. and Operskalski, B. and LaCroix, A. and Ott, S. and Scholes, D.},
title= {A comparison of self-reported oral contraceptive use and automated pharmacy data in perimenopausal and early postmenopausal women},
year = {2015},
doi = {10.1016/j.annepidem.2014.10.009},
volume = {25},
number = {1},
pages = {55--59},
}