Professor John Field has a Personal Clinical Chair in Molecular Oncology at the University of Liverpool. He is a Visiting Professor at University College London, holds the post of Director of Research of the Roy Castle Lung Cancer Research Programme. He is the Chief Investigator for the UK Lung Cancer Screening Trial, Chair of the European Union-United States Spiral CT Collaborative group (2011-). He was the previous Chair of the International Association for the Study of Lung Cancer (IASLC) Screening Prevention & early Detection Committee and he formed the IASLC Strategic Screening Advisory group, which he chairs. He was presented with the IASLC Joseph Cullen Award at the World Conference on Lung Cancer in 2011, in recognition for his lifetime scientific achievements in lung cancer prevention research. He is the Principal Investigator of the Liverpool Lung Project, a molecular-epidemiological study into the early detection of lung cancer, funded by the Roy Castle Lung Cancer Foundation. He is also PI on the large EU Early Lung Cancer study funded by the European Commission. Both of these trials form part of the National Cancer Research Institute Lung Cancer Clinical studies group's portfolio. A Partner in the FP7 CURELUNG and Lung Cancer Artificial Olfactory System projects, he is also heavily involved in the identification of molecular diagnostic markers in lung and head & neck cancers. His research funding has been provided mainly by the Rarer Cancers Foundation, North West Cancer Research Fund, the Medical Research Council, Cancer Research UK, the European Union, the National Institutes of Health and Health Technology Assessment.