title: The case for using pigs.
authors: Center for Bioethics, University of Pennsylvania, PA 19104, USA.
authors: A
authors: A
authors: Caplan
mesh_terms: D000818:Animals; D004992:Ethics, Medical; D006801:Humans; D009014:Morals; D012307:Risk Factors; D013552:Swine; D014183:Transplantation, Heterologous; D015047:Zoonoses / Q000635:transmission*