Some cases have been remarkable for starting broad discussion and for setting precedent in medical ethics.
Doctors at this hospital diagnosed African Americans with schizophrenia because of their civil rights ideas.
Normally trials on children require parental consent but, as the infants were in care, New York's authorities held that role.
Experiments were designed to test the "safety and tolerance" of AIDS medications, some of which have potentially dangerous side effects.
Babies were recruited from poor families that visited public hospitals for medical treatment.