Gary Cook is Professor of PET Imaging in the Kingโs College London and Guyโs & St Thomasโ PET Centre, the head of the Cancer Imaging Department in the Division of Imaging Sciences and Biomedical Engineering, Kingโs College London, and an honorary consultant at Guyโs & St Thomasโ Hospitals, London, UK. He is a member of the Guyโs and St Thomasโ Hospitals prostate cancer multidisciplinary team, imaging lead for the Kingโs Health Partners Prostate Cancer Research group, and a member of the UK National Cancer Research Institute Prostate Cancer Clinical Studies Group.