1. Pet ownership and risk factors for cardiovascular disease;Anderson;Med. J. Aust.,1992
2. Between Pets and People;Beck,1983
3. The supportive role of animal companionship for men with HIV related diagnoses;Castelli,1995
4. Favorable attitudes toward pets and happiness among the elderly;Connell,1984
5. Epi Info, Version 5: a word processing, database, and statistics program for epidemiology on microcomputers;Dean,1990