1. Reproductive cycles of the domestic bitch;Concannon;Anim Reprod Sci,2011
2. Günzel-Apel A, Urhausen C, Einspanier A, Oie C, Piechotta M. editors. Canine luteal function in pregnant and non-pregnant bitches. Proceedings of the 7th International Symposium on Canine and Feline Reproduction; 2012; Whistler, Canada. Reprinted in IVIS with the permission of the ISCFR Organizers
3. Action of progesterone on preoptic thermosensitive neurons;Nakayama;Nature,1975
4. Pregnancy and parturition in the bitch;Concannon;Biol Reprod,1977
5. Correlations among body temperature, plasma progesterone, cortisol and prostaglandin F2α of the periparturient bitch;Veronesi;J Vet Med A,2002