Alexander Koeppel, Elizabeth B. Perry, Johannes Sikorski, Danny Krizanc, Andrew Warner, David M. Ward, Alejandro P. Rooney, Evelyne Brambilla, Nora Connor, Rodney M. Ratcliff, Eviatar Nevo, Frederick M. Cohan
Proc Natl Acad Sci U S A. 2008 Feb 19; 105(7): 2504–2509. Published online 2008 Feb 12. doi: 10.1073/pnas.0712205105