Max Hahn, Umeå Centre for Molecular Medicine, defends his doctoral thesis The pancreatic “isletome” – 3D imaging to study diabetes in mice and men. Opponent Alvin C. Powers, MD, Professor, Director, Biomedical Science, Medicine, and molecular Physiology and Biophysics, Vanderbilt Diabetes Center, Division of Diabetes and Endocrinology, Vanderbilt univsersity, Nashville, USA. Principal supervisor Ulf Ahlgren.