Hypoxia within subcutaneously implanted macroencapsulation devices limits the viability and functionality of densely loaded islets. - Einstein SA; Steyn LV; Weegman BP; Suszynski TM; Sambanis A; O'Brien TD; Avgoustiniatos ES; Firpo MT; Graham ML; Janecek J; Eberly LE; Garwood M; et al. (Frontiers in transplantation, 2023)