North Devon District Hospital, Barnstaple, England, United Kingdom
Colchester General Hospital, Colchester, England, United Kingdom
Helen Rollason Cancer Care Centre at North Middlesex Hospital, London, England, United Kingdom
Tobacco Dependence Research and Treatment Unit, London, United Kingdom
Barts and The Royal London NHS Trust/Queen Mary University London/, London, United Kingdom
University College Hospital London, London, United Kingdom
Guy's and St Thomas' NHS Trust, London, United Kingdom
Centre For Academic Surgery, The Royal London Hospital, London, England, United Kingdom
Centre for Health Sciences, Queen Mary's School of Medicine and Dentistry, Barts and The London, 2 Newark Street,., London and Essex, London, United Kingdom
Saint Bartholomew's Hospital, London, England, United Kingdom
University College of London Hospitals, London, England, United Kingdom
Ipswich Hospital, Ipswich, England, United Kingdom
Queen Mary University of London, London, England, United Kingdom
Pirkanmaa Cancer Society, Tampere, Finland
Sir Paul Boffa Hospital, Harper Lane, Floriana, Malta
Inselspital Bern, Bern, Switzerland
Mid-Western Regional Hospital, Limerick, Ireland
Nottingham City Hospital, Nottingham, England, United Kingdom
Centre for Cancer Research and Cell Biology at Queen's University Belfast, Belfast, Northern Ireland, United Kingdom