Trevor Williams is a Melbourne trained Respiratory Physician who was a Clinical Research Fellow for the Toronto Lung Transplant Program. Upon his return to Melbourne he helped establish The Alfred Hospital Lung Transplant Program, which in the ensuing 24 years has performed over 1000 lung transplant procedures. His main clinical research interests are in the area of severe lung diseases including lung transplantation- particularly immunopathology of chronic rejection, pulmonary hypertension, exercise limitation in severe lung disease and development of novel bronchoscopic approaches to emphysema. He has been a principal investigator on several Phase 1, 2 and 3 clinical trials of pharmacological and non pharmacological therapies for COPD. He serves as a reviewer for all major international respiratory medicine journals. His work has produced over 180 peer review publications, book chapters or reviews.