Authors: Jie Xu; Penghong Song; Marian L Miller; Frank Borgese; Sharon Barone; Brigitte Riederer; Zhaohui Wang; Seth L Alper; John G Forte; Gary E Shull; Jordi Ehrenfeld; Ursula Seidler; Manoocher Soleimani Journal: Proc Natl Acad Sci U S A Date: 2008-11-12 Impact factor: 11.205