Brandhorst H, Friberg A, et al. (2010) – Cell Transplantation by Jessica Helweg | Jan 27, 2017 Brandhorst H, Friberg A, Nilsson B, et al. Large-scale comparison of Liberase HI and collagenase NB1 utilized for human islet isolation. Cell transplantation 2010; 19(1): 3-8.