1. American Humane (n.d.). Adoption and pet care. Available at: http://www.americanhumane.org/protecting-animals/adoption-pet-care/. Accessed November 15, 2010.
2. The influence of background music on shopping behavior–classical versus Top-40 music in a wine store. Adv;Areni;Consum. Res.,1993
3. AVMA, 2006. Animal welfare principles. Available at: http://www.avma.org/issues/policy/animal_welfare/principles.asp. Accessed November 15, 2010.
4. Effect of relaxation music on patient tolerance of gastrointestinal endoscopic procedures;Bampton;J. Clin. Gastroenterol.,1997
5. Effect of music on patients undergoing colonoscopy: a meta-analysis of randomized controlled trials;Bechtold;Dig. Dis. Sci.,2009