3Zoldag L, Voros K, Benedek D, et al. The diagnostic value of sonography in clinical picture of pyometra in the dog [ J ]. Tierarztl Prax, 1992, 20(5): 523-529.
4Chu Py Py, Salamonsen La, Lee Cs, et al. Matrix metalloproteinases (MMPs) in the endometrum of bitches [ J ]. Reproduction,2002, 123(3): 467-477.
5De Cook H, Ducatelle R, Tilmant K, et al. Possible role for insulin-like growth factor - 1 in the pathogenesis of cystic endometrial hyperplasia pyometra complex in the bitch [J]. Theriogendogy,2002, 57(9): 2271-2287.
6Gilbell Ro, Nothing Jo, Oettle EE. A retrospective study of 40 cases of canine pyometra-metritis treated with prostaglandin F-2 alpha and broad-spectrum antibacterial elrugs [J]. J Reprod Fertil Suppl,1989, 39: 225-229.
7Niemand. Praktikum der Hundeklinik [M]. Berlin:Parey Buchverlag,2001. 75-82.
8Grunnert. Tieraerztliche Geburtzhilfe und Gynaekologie in Frage und Antwort[M]. 第2版. Stuttgart:neu bearbeitete Auflage Ferdinand Enke Verlag,1995. 202-209.
9Guenzel-Apel. Fertilitaets-Kontrolle und Samenuebertragung beim Hund[M]. Stuttgart:Gustav Fischer Verlag Jena,1994. 49-68.
3Arora N, Sandford J, Browning G F,et al. A model for cysticendometrial hyperplasia-pyometra complex in the bitch[J]. The-riogenology,2006, 66 : 1530-1536.
4Dow C. Experimental reproduction of the cystic hyperplasia-pyo-metra complex in the bitch[J], J Pathol Bacterioh 1959, 78:267 -278.
5Miller-Lieb D,Fayer-Hosken R? Caudle A, et al. Reproductivetract diseases that cause infertility in the bitch[J]. Vet Med,1994, 89: 1047-1054.
6Sevelius E, Tidholm A, Thoren-Tolling K. Pyometra in the dog[J].J Am Anim Hosp Assoc, 1990,36: 33-38.