1. National pet owners survey (NPOS);APPMA,2005
2. Pet ownership and human health: a brief review of evidence and issues;McNicolas;BMJ,2005
3. The human-animal bond and grief;Lagoni,1994
4. Predictors of owner response in companion animal death;Adams;J Am Vet Med Assoc,2000
5. From vision to system: the maturing of the hospice movement;James,1996