Dr. Klein is currently Chief of the Hematology/Oncology Section at the Minneapolis VA Healthcare System and an Associate Professor of Medicine in the Division of Hematology, Oncology, and Transplantation at the University of Minnesota. He earned his medical degree at the University of Iowa. Dr. Klein then completed residency training in internal medicine and fellowship training in hematology and oncology at the University of Minnesota. His laboratory research interests include basic research in mesothelioma, and his clinical and translational research interests include lung cancer and head and neck cancer. He is currently the contact PI for the VISN 23 Lung Cancer Precision Oncology Program grant and the local site investigator for participation in the NCI Alliance for Clinical Trials Oncology Cooperative Group and the VA NAVIGATE program.