Dr. Hoefs has extensive clinical and research experience with liver disease. He pioneered the development of the QLSS® technique and has published in prestigious journals, including Gastroenterology, Hepatology and the New England Journal of Medicine. Dr. Hoefs serves as COO. He is an emeritus professor at the University of California Irvine, and runs the Liver Specialty Center, a hepatology practice. Dr. Hoefs has an M.D. from the George Washington University Medical School.