Hancock, D. B., Håberg, S. E., Furu, K., Whitworth, K. W., Nafstad, P., Nystad, W., & London, S. J. (2011). Oral contraceptive pill use before pregnancy and respiratory outcomes in early childhood.

Hancock, Dana B., Siri E. Håberg, Kari Furu, Kristina W. Whitworth, Per Nafstad, Wenche Nystad, e Stephanie J. London. Oral Contraceptive Pill Use Before Pregnancy and Respiratory Outcomes in Early Childhood. 2011.

Hancock, Dana B., et al. Oral Contraceptive Pill Use Before Pregnancy and Respiratory Outcomes in Early Childhood. 2011.