Electronic cigarettes and vaping Tommy's England paying pregnant smokers to switch to e cigs while evidence of damage to developing fetuses grows Stanton Glantz blog Flavored e cigarettes modulate embryo development, fetal growth, and potentiate early fetal demise without nicotine Communications Medicine E Cigarettes in Pregnancy: Does anybody know enough? Maternity & Midwifery Forum Smoking e cigarettes while pregnant could increase risk of birth defects, study suggests The Independent The Independent 4 myths about vaping and pregnancy busted Your Pregnancy Matters UT Southwestern Medical Center