Toward a Syndrome Model of Addiction: Multiple Expressions, Common Etiology Shaffer, Howard J.; LaPlante, Debi A.; LaBrie, Richard A.; More Shaffer, Howard J.; LaPlante, Debi A.; LaBrie, Richard A.; Kidman, Rachel C.; Donato, Anthony N.; Stanton, Michael V. Less Harvard Review of Psychiatry. 12(6):367-374, November-December 2004. Favorite PDF Permissions Buy