1. Presence of human friends and pet dogs as moderators of autonomic responses to stress in women;Allen;J Pers Soc Psychol,1991
2. Cardiovascular reactivity in the presence of pets, friends, and spouses: the truth about cats and dogs;Allen;Psychosom Med,2002
3. Fun pets statistics;American Pet Association,2003
4. Industry statistics and trends;APPMA,2005
5. Animal companions and marketing: dogs are more than just a cell in the BCG matrix!;Aylesworth;Adv Consum Res,1999