1R. G. Bretzel,D. Brandhorst,H. Brandhorst,M. Eckhard,W. Ernst,S. Friemann,W. Rau,B. Weimar,K. Rauber,B. J. Hering,M. D. Brendel. Improved survival of intraportal pancreatic islet cell allografts in patients with type-1 diabetes mellitus by refined peritransplant management[J] 1999,Journal of Molecular Medicine(1):140~143