1. Department of Dermatology; “Dr. Manuel Gea Gonzalez” General Hospital; Mexico City Mexico
2. International Interdisciplinary Wound and Ostomy Care Center; Sunnybrook & Women's College Health Sciences Centre; Toronto Canada
3. Department of Pathology; Sunnybrook & Women's College Health Sciences Centre; Toronto Canada
4. Faculty of Medicine; Universidad Nacional Autónoma de México; Mexico City Mexico