1. Animal Shelter Reporting Study;American Humane Association,1987
2. Peripheral plasma levels of oestradiol-17 beta and progesterone in the bitch during the oestrous cycle, in normal pregnancy and after dexamethasone treatment;Austad;J. Reprod. Fertil.,1976
3. Efficacy and toxicity of estrogens commonly used to terminate canine pregnancy;Bowen;J. Am. Vet. Med. Assoc.,1985
4. Efficacy and toxicity of tamoxifen citrate for prevention and termination of pregnancy in bitches;Bowen;Am. J. Vet. Res.,1988
5. Bromocryptine as an abortifacient in the bitch;Chinn,1985