Lawson, C. C., Whelan, E. A., Hibert, E. N., Grajewski, B., Spiegelman, D., & Rich-Edwards, J. W. (2008). Occupational factors and risk of preterm birth in nurses. Am J Obstet Gynecol.

Lawson, Christina C., Elizabeth A. Whelan, Eileen N. Hibert, Barbara Grajewski, Donna Spiegelman, and Janet W. Rich-Edwards. "Occupational Factors and Risk of Preterm Birth in Nurses." Am J Obstet Gynecol 2008.

Lawson, Christina C., et al. "Occupational Factors and Risk of Preterm Birth in Nurses." Am J Obstet Gynecol 2008.