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