Caffeine and nicotine penetrate the pre-implantation blastocyst.
D000818:Animals; D002110:Caffeine; D002247:Carbon Isotopes; D005260:Female; D005865:Gestational Age; D008431:Maternal-Fetal Exchange; D009538:Nicotine; D011247:Pregnancy; D011270:Pregnancy, Animal; D011817:Rabbits; D014316:Tritium
D002247:Carbon Isotopes; D014316:Tritium; D002110:Caffeine; D009538:Nicotine