Anderson Richard M, Bishop Laura Jane, Darragh Martina, Gray Hariet H, Nolen Anita L, Poland Susan Cartier
National Reference Center for Bioethics Literature, Kennedy Institute of Ethics, Georgetown University, Box 571212, Washington, DC 20057-1212, USA.
Kennedy Inst Ethics J. 2006 Dec;16(4):379-96. doi: 10.1353/ken.2006.0000.