In 1989, the subject was federal funding for research that involved fetal tissue transplantation - a technique using cells taken from dead fetuses that had developed further than the embryos now under discussion.
People with Parkinson's disease and parents of diabetic children told stories of suffering that they believed might eventually be eased through research on fetal tissue transplantation.
One of President Bill Clinton's earliest official acts was to sign a law permitting federal funding for fetal tissue transplantation.
He was internationally noted for his work in cancer research which led to breakthroughs in tissue transplantation.
Ernst J Eichwald (1913-2007) was a pathologist known for his pioneering work in tissue transplantation and research on genetic factors that influence the rejection of organ transplantation.
A free flap is defined as a tissue mass that has been taken away from the original site to be used in tissue transplantation.
Dr. Fahn added: "Don't overlook fetal tissue transplantation.
Its Eye Clinic was the place of the world's first successful tissue transplantation in 1905 (performed by Eduard Konrad Zirm).
The second rule requires tissue establishments to evaluate donors, through screening and testing, to reduce the transmission of infectious diseases through tissue transplantation.
"Being for fetal tissue transplantation is consistent with being for life."