[1] Univ Manchester, Inst Inflammat & Repair, Manchester, Lancs, England
[2] Royal Manchester Childrens Hosp, Dept Paediat Immunol, Manchester M27 1HA, Lancs, England
[3] Royal Manchester Childrens Hosp, Dept Rheumatol, Manchester M27 1HA, Lancs, England
[4] Royal Manchester Childrens Hosp, Dept Bone Marrow Transplantat, Manchester M27 1HA, Lancs, England
[5] Salford Royal Fdn Trust, Dept Immunol, Manchester, Lancs, England