1. Placental transfer of drugs;Asling,1971
2. Principals of Drug Disposition in Domestic Animals;Baggot,1977
3. Fetal and neonatal effects of cytotoxic agents;Barber;Obstet. Gynecol,1981
4. Efficacy and toxicity of estrogens commonly used to terminate canine pregnancy;Bowen;J. Am. Vet. Med. Assoc.,1985
5. The value of animal teratogenicity testing for predicting human risk;Brown;Clin. Obstet. Gynecol.,1983