Wagner C. L., L. D. Katikaneni, T. H. Cox and R. M. Ryan. 1998. The impact of prenatal drug exposure on the neonate. Obstetrics and Gynecology Clinics of North America 25(1): 169-194.
Walker L. O. and M. Kim. 2002. Psychosocial thriving during late pregnancy: relationship to ethnicity, gestational weight gain, and birth weight. Journal of Obstetric, Gynecologic, and Neonatal Nursing 31(3): 263-274.
Weissman A., E. Siegler, R. Neiger, P. Jakobi and E. Z. Zimmer. 1989. The influence of increased seismic activity on pregnancy outcome. European Journal of Obstetrics, Gynecology, and Reproductive Biology 31(3): 233-236.
Wells C. S., R. Schwalberg, G. Noonan and V. Gabor. 2006. Factors influencing inadequate and excessive weight gain in pregnancy: Colorado, 2000-2002. Maternal and Child Health Journal 10(1): 55-62.
Wilde P. E. and J. N. Peterman. 2006. Individual weight change is associated with household food security status. Journal of Nutrition 136(5): 1395-1400.
Williams M. A., C. Qiu, M. Muy-Rivera, S. Vadachkoria, T. Song and D. A. Luthy. 2004. Plasma adiponectin concentrations in early pregnancy and subsequent risk of gestational diabetes mellitus. Journal of Clinical Endocrinology and Metabolism 89(5): 2306-2311.
Winzer C., O. Wagner, A. Festa, B. Schneider, M. Roden, D. Bancher-Todesca, G. Pacini, T. Funahashi and A. Kautzky-Willer. 2004. Plasma adiponectin, insulin sensitivity, and subclinical inflammation in women with prior gestational diabetes mellitus. Diabetes Care 27(7): 1721-1727.
Wisner K., D. Sit and S. Reynolds. 2007. Psychiatric Disorders. In Obstetrics Normal and Problems Pregnancies Fifth Edition. S. Gabbe, J. Niebyl and J. Simpson. Philadelphia, PA: Churchill Livingstone; pp. 1249-1279.
Wolff C. B., M. Portis and H. Wolff. 1993. Birth weight and smoking practices during pregnancy among Mexican-American women. Health Care for Women International 14(3): 271-279.
Wolff M. S., S. Engel, G. Berkowitz, S. Teitelbaum, J. Siskind, D. B. Barr and J. Wetmur. 2007. Prenatal pesticide and PCB exposures and birth outcomes. Pediatric Research 61(2): 243-250.
Yanagisawa K., N. Iwasaki, M. Sanaka, S. Minei, M. Kanamori, Y. Omori and Y. Iwamoto. 1999. Polymorphism of the beta3-adrenergic receptor gene and weight gain in pregnant diabetic women. Diabetes Research and Clinical Practice 44(1): 41-47.