1. Johnson CA, False pregnancy, disorders of pregnancy and parturition, and mismating. In: Nelson RW, Couto CG, editors, Small animal internal medicine, 4th ed., St Louis: Elsevier; in press.
2. Canine reproductive management: factors affecting litter size;Kelley,2002
3. Reproductive patterns in the dog—a retrospective study of the Drever breed;Bobic Gavrilovic;Theriogenology,2008
4. Embryo development, hormonal requirements and maternal responses during canine pregnancy;Concannon;J Reprod Fertil,2001
5. In vivo canine oocyte maturation, fertilization and early embryogenesis: a review;Reynaud;Theriogenology,2006