[1] Royal Childrens Hosp, Dept Dermatol, Melbourne, Vic, Australia
[2] Royal Childrens Hosp, Dept Gen Med, Rheumatol Unit, Melbourne, Vic, Australia
[3] Royal Childrens Hosp, Dept Anat Pathol, Melbourne, Vic, Australia
[4] Univ Melbourne, Dept Paediat, Melbourne, Vic, Australia
[5] Monash Univ, Box Hill Hosp, Dept Med, Melbourne, Vic 3004, Australia