Authors: Chao Yan; Degang Liu; Liwei Li; Michael F Wempe; Sunny Guin; May Khanna; Jeremy Meier; Brenton Hoffman; Charles Owens; Christina L Wysoczynski; Matthew D Nitz; William E Knabe; Mansoor Ahmed; David L Brautigan; Bryce M Paschal; Martin A Schwartz; David N M Jones; David Ross; Samy O Meroueh; Dan Theodorescu Journal: Nature Date: 2014-09-14 Impact factor: 49.962