Yun Xu, Wenri Zhang, Judith Klaus, Jennifer Young, Ines Koerner, Laird C. Sheldahl, Patricia D. Hurn, Francisco Martínez-Murillo, Nabil J. Alkayed
Proc Natl Acad Sci U S A. 2006 Sep 26; 103(39): 14489–14494. Published online 2006 Sep 13. doi: 10.1073/pnas.0602932103