1. Autism statistics (Center for Disease Control) and Suicide statistics (CNN)

  2. Pet statistics, ASPCA 

  3. Allen and Blascovich, Journal of the AMA (1996) conducted the only published study in which individuals with severe and chronic ambulatory disabilities (who required the use of wheelchairs) were randomly assigned to either an experimental or control group in a paired-sample, controlled clinical trial design.  The study assessed the impact of service dogs for these participants. The results showed improvements in seven dependent measures.

  4. Valentine, D.P., Kiddoo, M., & LaFleur, B, in Social Work in Health Care (1993) 

  5. Lane, D., McNicholas, J., & Collis, G., 1998, Applied Animal Behaviour Science 59(1-3), 49-60.