William R. Swindell, Andrew Johnston, Steve Carbajal, Gangwen Han, Christian Wohn, Jun Lu, Xianying Xing, Rajan P. Nair, John J. Voorhees, James T. Elder, Xiao-Jing Wang, Shigetoshi Sano, Errol P. Prens, John DiGiovanni, Mark R. Pittelkow, Nicole L. Ward, Johann E. Gudjonsson
PLoS One. 2011; 6(4): e18266. Published online 2011 Apr 4. doi: 10.1371/journal.pone.0018266