William R. Swindell, Xianying Xing, Philip E. Stuart, Cynthia S. Chen, Abhishek Aphale, Rajan P. Nair, John J. Voorhees, James T. Elder, Andrew Johnston, Johann E. Gudjonsson
PLoS One. 2012; 7(3): e34594. Published online 2012 Mar 29. doi: 10.1371/journal.pone.0034594