Professor Peter Rosenbaum, MD, FRCP(C); currently Professor of Paediatrics, McMaster University, Canada. Holds Research Chair in Childhood Disability, Mentoring and Dissemination.As a Developmental Paediatrician he has had a wide-ranging experience of childhood disability, with a particular interest in cerebral palsy. For the past 40 years he has been an active clinician, researcher, teacher, mentor, author and editor. In 1989 he co-founded CanChild Centre for Childhood Disability Research. He holds an honorary degree as Doctor of Science from Université Laval (2005). In 2000 he was recognized with the Canadian Paediatric Society's highest award, the Ross Award. Dr Lewis Rosenbloom, FRCP, Hon FRCPCH, Honorary Consultant Paediatric Neurologist, Liverpool UK. He is a paediatric neurologist with a special interest and expertise in paediatric neurodisability. In addition to having developed and co-ordinated a range of relevant clinical services for disabled children, his recent work and publications have been concerned with the causes of cerebral palsy and life expectation of children and adults with cerebral palsy.