Stanford DH Chen Professor, Department of Psychiatry & Behavioral Sciences Department of Bioengineering Howard Hughes Medical Institute.

Stanford Professor Developmental Biology, Member, Stanford Institute for Stem Cell Biology and Regenerative Medicine, Member, Stanford Cancer Institute Howard Hughes Medical Institute Investigator

Stanford Associate Professor, Medicine (Blood & Marrow Transplantation) Member, Stanford Cancer Institute

Associate Professor of Medicine, Dana-Farber Cancer Institute and Harvard Medical School Associate Physician, Medical Oncology Service, Dana-Farber Cancer Institute Associate Member, Broad Institute of MIT and Harvard

Professor of Medicine, Dana-Farber Cancer Institute of Medicine and Harvard Medical School Institute Member, Broad Institute of MIT and Harvard Chief Research Strategy Officer Chair, Executive Committee for Research Chief, Division of Molecular and Cellular Oncology Co Director, Center for Cancer Genome Discovery

University Distinguished Professor, Departments of Neurology, Cell Biology and Physiology, Biochemistry and Molecular Biology, and Pharmaceutical Chemistry, University of Kansas School of Medicine; Director, University of Kansas Alzheimer’s Disease Research Center, Neurodegenerative Disorders Program, and Heartland Center for Mitochondrial Medicine, with research focused on brain energy metabolism and its role in Alzheimer’s disease.