1. Department of Pathology and Laboratory MedicineCumming School of Medicine University of Calgary 3330 Hospital Drive NW Calgary Alberta T2N 4N1 Canada
2. Division of HematopathologyAlberta Public Laboratories 3535 Research Road NW Calgary Alberta T2L 1Y1 Canada
3. Department of MedicineUniversity of Calgary 3330 Hospital Drive NW Calgary Alberta T2N 4N1 Canada
4. Southern Alberta HIV ClinicSheldon M. Chumir Health Center 1213 4 Street SW Calgary Alberta T2R 0X7 Canada
5. Department of Paediatrics, Cumming School of MedicineUniversity of Calgary 28 Oki Drive NW Calgary Alberta T3B 6A8 Canada