Author information:
(1)Division of Comparative Medicine, Massachusetts Institute of Technology, 
Cambridge, MA, USA.
(2)Division of Comparative Medicine, Massachusetts Institute of Technology, 
Cambridge, MA, USA; College of Veterinary Medicine, Aristotle University, 
Thessaloniki, Greece.
(3)Neurobiology of Social Behavior Laboratory, Department of Psychology, Boston 
College, Chestnut Hill, MA, USA.
(4)Division of Comparative Medicine, Massachusetts Institute of Technology, 
Cambridge, MA, USA; Biological Engineering, Massachusetts Institute of 
Technology, Cambridge, MA, USA.
(5)University of Massachusetts Medical School and Memorial Medical Center, 
Worcester, MA, USA.
(6)College of Veterinary Medicine, Aristotle University, Thessaloniki, Greece.
(7)Clinical Research Center, Institute for Medical Engineering & Science, 
Massachusetts Institute or Technology, Cambridge, MA, USA.
(8)Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 
USA; Civil and Environmental Engineering, Massachusetts Institute of Technology, 
Cambridge, MA, USA; Broad Institute of MIT and Harvard, Cambridge, MA, USA.
(9)Division of Comparative Medicine, Massachusetts Institute of Technology, 
Cambridge, MA, USA. Electronic address: serdman@mit.edu.