Authors: Chuanli Ju; Gyeong Mee Yoon; Jennifer Marie Shemansky; David Y Lin; Z Irene Ying; Jianhong Chang; Wesley M Garrett; Mareike Kessenbrock; Georg Groth; Mark L Tucker; Bret Cooper; Joseph J Kieber; Caren Chang Journal: Proc Natl Acad Sci U S A Date: 2012-11-06 Impact factor: 11.205