1. China: Stem Cells Rise in the East;NATURE,2002
2. Scientists Put a Bit of Man into a Mouse;See Lisa;Ethics Issues in Mixing Brain Cells, MERCURY NEWS,2002
3. See generally Graca Almeida-Porada et al., Plasticity of Human Stem Cells in the Fetal Sheep Model of Human Stem Cell Transplantation, 79 INT'L;See Sylvia Pag�n;Growing Human Organs on the Farm, NEW SCIENTIST,2002