Authors: Mitchell J Schultz; Xiaoyu Zhang; Sakulsuk Unarunotai; Dahl-Young Khang; Qing Cao; Congjun Wang; Changhui Lei; Scott MacLaren; Julio A N T Soares; Ivan Petrov; Jeffrey S Moore; John A Rogers Journal: Proc Natl Acad Sci U S A Date: 2008-05-27 Impact factor: 11.205