Dhanjal Sacha, Saso Anja, Eleftheriou Despina, Laurent Sue
Paediatrics, Barnet General Hospital, Royal Free London NHS Foundation Trust, London, UK.
Paediatric and Adolescent Rheumatology, Great Ormond Street Hospital for Children NHS Trust, London, UK.
BMJ Case Rep. 2017 May 22;2017:bcr2016218903. doi: 10.1136/bcr-2016-218903.