Vol 211, Issue 7: 30 September 2019. Professor Susan Sawyer is Chair of Adolescent Health at the University of Melbourne, Director of the Centre for Adolescent Health at the Royal Children's Hospital Melbourne, and President of the International Association of Adolescent Health. She talks about expanding the definition of adolescence and what that might mean for paediatrics globally. With MJA news and online editor, Cate Swannell. 28 mins, 12 secs.