David Nauwelaers, Margriet Van Houtte, Bart Winters, Kim Steegen, Kurt Van Baelen, Ellen Chi, Mimi Zhou, Derek Steiner, Rachelle Bonesteel, Colin Aston, Lieven J. Stuyver
PLoS One. 2011; 6(5): e19643. Published online 2011 May 24. doi: 10.1371/journal.pone.0019643