1. Division of Dermatology Department of Medicine University of Toronto Toronto ON Canada
2. Mediprobe Research Inc. London ON Canada
3. Sporometrics Toronto ON Canada
4. Dalla Lana School of Public Health University of Toronto Toronto ON Canada
5. Division of Dermatology Sunnybrook Health Sciences Centre Toronto ON Canada
6. Division of Dermatology Women's College Hospital Toronto ON Canada
7. Department of Dermatology and Cutaneous Surgery Leonard Miller School of Medicine University of Miami Miami FL USA
8. Dermatology Unit Department of Experimental, Diagnostic and Specialty Medicine University of Bologna Bologna Italy