Authors: John Virostko; Joseph Henske; Laurent Vinet; Smaragda Lamprianou; Chunhua Dai; Aramandla Radhika; Ronald M Baldwin; Mohammad S Ansari; Franz Hefti; Daniel Skovronsky; Hank F Kung; Pedro L Herrera; Todd E Peterson; Paolo Meda; Alvin C Powers Journal: Proc Natl Acad Sci U S A Date: 2011-12-05 Impact factor: 11.205