1 . Capen CC,Martin SL . Animal model:hyperadreno corticism(Cushing ’ s‐like syndrome and disease in dogs). Am J Pathol,1975,81.5 . Zielke A,Bresalier RS,Siperstein AE,et al . A unique allogenic model of metastatic pheochromocyto ma:PC12 rat pheochromocyt ......