Reem Abdwani1
, Kristin Houghton2
, Simon Dobson3
, Maureen O' Sullivan4
and Peter Malleson2 
1
Division of Child health, Sultan Qaboos University Hospital, Muscat, Oman
2
Division of Pediatric Rheumatology, University of British Columbia, Vancouver, Canada
3
Division of Infectious Disease, University of British Columbia, Vancouver, Canada
4
Department of Pathology & Laboratory Medicine, University of British Columbia, Vancouver, Canada