title: Acute effects of nicotine on fetal heart rate variability.
mesh_terms: D001794:Blood Pressure / Q000187:drug effects; D002638:Chewing Gum; D004562:Electrocardiography; D005260:Female; D005318:Fetal Heart / Q000187:drug effects*; D006339:Heart Rate / Q000187:drug effects*; D006801:Humans; D009538:Nicotine / Q000494:pharmacology*; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D011263:Pregnancy Trimester, Third; D012907:Smoking
chemical_list: D002638:Chewing Gum; D009538:Nicotine