What tangled webs we weave. Presidential address.
D004501:Education, Medical / Q000639:trends; D004992:Ethics, Medical; D005260:Female; D005323:Fetal Monitoring; D006176:Gynecology / Q000639:trends*; D006801:Humans; D013677:Medical Laboratory Science / Q000639:trends; D009774:Obstetrics / Q000639:trends*; D010817:Physician-Patient Relations; D011247:Pregnancy; D011295:Prenatal Care; D013038:Specialization; D014481:United States