http://www.medhunters.com/articles/pagingDrDog.html

http://findarticles.com/p/articles/mi_m0825/is_4_67/ai_81759719/

http://findarticles.com/p/articles/mi_m0FRO/is_n2_v130/ai_19225851/

http://www.kidneeds.com/diagnostic_categories/articles/animalassistedtherapy.htm

http://www.sniksnak.com/therapy.html