Experimental subjects. Who should they be?
D004992:Ethics, Medical; D005260:Female; D005333:Fetus; D006805:Human Experimentation; D006801:Humans; D007258:Informed Consent; D007883:Legislation, Medical; D028681:Moral Obligations; D033281:Nontherapeutic Human Experimentation; D033282:Parental Consent; D018579:Patient Selection; D011247:Pregnancy; D012106:Research; D035842:Research Subjects; D018570:Risk Assessment; D014481:United States