Ginny L. Emerson, Yu Li, Michael A. Frace, Melissa A. Olsen-Rasmussen, Marina L. Khristova, Dhwani Govil, Scott A. Sammons, Russell L. Regnery, Kevin L. Karem, Inger K. Damon, Darin S. Carroll
PLoS One. 2009; 4(10): e7666. Published online 2009 Oct 29. doi: 10.1371/journal.pone.0007666