Before becoming President and CEO of the Greenwall Foundation, Dr. Lo was Professor of Medicine and Director of the Program in Medical Ethics at UCSF. A member of the Institute of Medicine (IOM, now called the National Academy of Medicine, NAM), Dr. Lo served on the IOM Council, chaired the IOM Board on Health Sciences Policy, and chaired IOM committees on conflicts of interest in medicine and responsible sharing of clinical trial data. He chairs a NAM committee on Evidence-Based Clinical Practice Guidelines on Prescribing Opioids for Acute Pain. He is co-chair of the CIRM Standards Working Group, which recommends regulations for stem cell research funded by the state of California. Dr. Lo also serves on the Board of Directors of Association for the Accreditation of Human Research Protection Programs (AAHRPP) and on the Medical Advisory Panel of Blue Cross/Blue Shield. He is author of Resolving Ethical Dilemmas: A Guide for Clinicians (6th ed., 2019).