Schapiro Steven J, Laule Gail, Seelig David
The Michale E. Keeling Center for Comparative Medicine and Research, The University of Texas M. D. Anderson Cancer Center, Bastrop, TX 78602, USA.
J Appl Anim Welf Sci. 2007;10(1):79-81. doi: 10.1080/10888700701277709.