Oxford University, Oxford, United Kingdom
Sheffield Children's Hospital, Sheffield, United Kingdom
Institute of Cadiovascular diseases, Fuwai hospital, Chinese academy of medical sciences, Beijing, China
Clinical Trial Service Unit and Epidemiological Studies Unit, Oxford, United Kingdom
Shally Awasthi, Lucknow, Uttar Pradesh, India
Cancer Institute, Chinese Academy of Medical Sciences, Beijing, China
Qidong Liver Cancer Institute, Qidong, Jiangsu, China
Clinical Trial Service Unit and Epidemiological Studies Unit, Oxford, United Kingdom
Clinical Trial Service Unit, NDPH, University of Oxford, Oxford, United Kingdom
Royal Blackburn Hospital, Blackburn, Lancashire, United Kingdom
Queen Elizabeth Hospital, Birmingham, West Midlands, United Kingdom
Royal Berkshire Hospital, Reading, Berkshire, United Kingdom
Clinical Trial Service Unit & Epidemiological Studies Unit, University of Oxford, Oxford, United Kingdom
CTSU, Richard Doll Building, University of Oxford, Oxford, Oxon, United Kingdom
University of Oxford, Oxford, Oxfordshire, United Kingdom