Valerie Zabala, et al. “ Potential Co-Factor Role of Tobacco Specific Nitrosamine Exposures in the Pathogenesis of Fetal Alcohol Spectrum Disorder”. Gynecology and Obstetrics Research, vol. 2, no. 5, Mar. 2016, pp. 112-25, https://openventio.us/index.php/GOR/article/view/1383.