Kalivas P W, Duffy P, Dilts R, Abhold R
Department of Veterinary and Comparative Anatomy, Pharmacology, and Physiology, College of Veterinary Medicine, Washington State University, Pullman 99164-6520.
Ann N Y Acad Sci. 1988;537:405-14. doi: 10.1111/j.1749-6632.1988.tb42123.x.