Authors: Jean S Campbell; Steven D Hughes; Debra G Gilbertson; Thomas E Palmer; Matthew S Holdren; Aaron C Haran; Melissa M Odell; Renay L Bauer; Hong-Ping Ren; Harald S Haugen; Matthew M Yeh; Nelson Fausto Journal: Proc Natl Acad Sci U S A Date: 2005-02-22 Impact factor: 11.205