@article{
  author = {Fattahian,, H.R, Kabir,, فرخ رضا, Vazir,, N., Vazir, B., Sasani,, فرهنگ},
  title = {Retrospective study on the incidence and type of
mammary gland tumors in dogs},
  journal = {journal of veterinary clinical research},
  year = {2010},
  volume = {1},
  number = {4},
  pages = {221-228},
  doi = {}
}