Affiliation: | 1. From the Department of Veterinary Surgery, School of Veterinary Medicine and Zootechnics, University of S?o Paulo, , S?o Paulo, SP, Brazil;2. College of Medical Sciences Santa Casa de S?o Paulo, , S?o Paulo, SP, Brazil;3. Department of Animal Reproduction, School of Veterinary Medicine and Zootechnics, University of S?o Paulo, , S?o Paulo, SP, Brazil |