1 Department of Clinical Immunology and Immunopathology, Institute of Clinical Pathology and Medical Research, Westmead Hospital, Westmead, NSW, Australia.
2 Sydney Medical and Sydney Dental Schools of the Faculty of Medicine and Health, The University of Sydney, Camperdown, Sydney, NSW, Australia.
3 Department of Oral Medicine, Oral Pathology and Special Needs Dentistry, Westmead Hospital, Westmead, NSW, Australia.
4 Flow Cytometry Unit, Institute of Clinical Pathology and Medical Research, Westmead Hospital, Westmead, NSW, Australia.
5 Department of Dermatology, Westmead Hospital, Westmead, NSW, Australia.