Global location and transplant volume of pancreas and islet transplant center respondents. A. World map indicating geo-location of respondents with red arrows indicating pancreas transplant centers; blue, islet transplant centers and purple, combined programs. B. Pancreas transplant volumes per year stratified by type of solid organ pancreas transplantation. C. Cumulative islet transplant volumes stratified by number of transplants done in the last year, last 5 years, last 10 years and last 20 years, respectively.