1Miyabayashi T,Lord PF,Dubielzig RR,Biller DS,Manley PA.Chemonucleolysis with collagenase A radiographic and pathologic study in dogs [J]. Vet Surg. 1992,21(3):189-194.
5Miyabayashi T. Lord PF. Dubielzig RR, et al. Manley PA. Chemonucleolysis with collagenase: A radiographic and pathologic study in dogs[J]. Vet Surg,1992.21(3):189- 194.
6Wintermantel E, Emele H, leow F. intradisc collagenase for treatment of lumbar disc herniation, A comparison of clinical result and computed tomography follow up acta Neunchir.1985,78 (3-4) :98