Malloy, M. H., Kleinman, J. C., Bakewell, J. M., Schramm, W. F., & Land, G. H. (1989). Maternal smoking during pregnancy: No association with congenital malformations in Missouri 1980-83.

Malloy, M H., J C. Kleinman, J M. Bakewell, W F. Schramm, ja G H. Land. Maternal Smoking During Pregnancy: No Association With Congenital Malformations in Missouri 1980-83. 1989.

Malloy, M H., et al. Maternal Smoking During Pregnancy: No Association With Congenital Malformations in Missouri 1980-83. 1989.