title: Invasive studies during normal pregnancy.
authors.forename: R L
authors.initials: RL
authors.lastname: Berkowitz
authors.forename: G S
authors.initials: GS
authors.lastname: Berkowitz
mesh_terms: D028744:Ethics Committees, Research; D004992:Ethics, Medical; D005260:Female; D006801:Humans; D033281:Nontherapeutic Human Experimentation; D011247:Pregnancy; D037841:Pregnant People; D012106:Research; D035842:Research Subjects; D018570:Risk Assessment