Authors: Tao Lan; Ekambar R Kandimalla; Dong Yu; Lakshmi Bhagat; Yukui Li; Daqing Wang; Fugang Zhu; Jimmy X Tang; Mallikarjuna R Putta; YanPing Cong; Anthony F Trombino; Tim Sullivan; Sudhir Agrawal Journal: Proc Natl Acad Sci U S A Date: 2007-08-14 Impact factor: 11.205