Vaz, L., Leonardi-Bee, J., Aveyard, P., Cooper, S., Grainge, M., Coleman, T., & Tobacco, S. f. R. o. N. a. (2014). Factors associated with smoking cessation in early and late pregnancy in the smoking, nicotine, and pregnancy trial: A trial of nicotine replacement therapy. Oxford University Press.
Chicago-referens (17:e uppl.)Vaz, L., J. Leonardi-Bee, P. Aveyard, S. Cooper, M. Grainge, T. Coleman, och Society for Research on Nicotine and Tobacco. Factors Associated with Smoking Cessation in Early and Late Pregnancy in the Smoking, Nicotine, and Pregnancy Trial: A Trial of Nicotine Replacement Therapy. Oxford University Press, 2014.
MLA-referens (9:e uppl.)Vaz, L., et al. Factors Associated with Smoking Cessation in Early and Late Pregnancy in the Smoking, Nicotine, and Pregnancy Trial: A Trial of Nicotine Replacement Therapy. Oxford University Press, 2014.