Roderick Marion, Finn Adam, Ramanan A V
Department of Paediatric Rheumatology, Bristol Royal Hospital for Children, 23 Hillview, Henleaze, Bristol BS9 4QD, UK.
Arch Dis Child. 2012 Jul;97(7):587-9. doi: 10.1136/archdischild-2012-301684. Epub 2012 May 4.