England paying pregnant smokers to switch to e cigs while evidence of damage to developing fetuses grows Stanton Glantz blog Pregnancy and Vaping CIMCC Is vaping safer than smoking when you're pregnant? Experts weigh in BabyCenter Vaping and Pregnancy: Debunking Miscarriage Myths Exposure to vaping in utero can change baby's face, skull: study Use of Electronic Vapor Products Before, During, and After Pregnancy Among Women with a Recent Live Birth Oklahoma and Texas, 2015 MMWR