He lectures regularly at international conferences, and has co-organised several international meetings.
He is a member of the International Association for the Study of Lung Cancer (IASLC) pathology panel, membership committee and staging committee. He is specialist advisor to the Royal College of Pathologists for lung cancer and a member of the Department of Health Advisory Group for lung cancer and mesothelioma. He is General Secretary for the British Division of the International Academy of Pathologists.
He has co-authored over 200 publications, predominantly on interstitial lung disease and cancer (lung and mesothelioma), being involved in several committees internationally producing guidelines for the management of idiopathic pulmonary fibrosis and lung cancer. He also wrote sections for the most recent WHO classification of lung tumours. He has co-authored Pathology of the Lung, 2nd Edition (3rd now in press), which won first prize in the basic and clinical sciences section of the BMA book awards in 2006, and is currently co-writing the Armed Forces Institute of Pathology fascicle on lung tumours.