Authors: Kent E Vrana; Jason D Hipp; Ashley M Goss; Brian A McCool; David R Riddle; Stephen J Walker; Peter J Wettstein; Lorenz P Studer; Viviane Tabar; Kerrianne Cunniff; Karen Chapman; Lucy Vilner; Michael D West; Kathleen A Grant; Jose B Cibelli Journal: Proc Natl Acad Sci U S A Date: 2003-09-22 Impact factor: 11.205