||Simon Marsh trained at Trinity College Cambridge and the Clinical School, Addenbrookes Hospital. He was one of the few students to be awarded the William Harvey Studentship in consecutive years. His MD thesis, from the University of Cambridge focused on the role of growth factors in breast cancer. He is Senior Consultant Surgeon in the Colchester Breast Unit in Essex and has been a member of The London Breast Clinic since 1999. In 2006 he halved his workload within the NHS to dedicate more time to The London Breast Clinic. He retains an active interest in cancer research and is an Honorary Senior Lecturer to the Department of Biomedical Sciences in the University of Essex.