1. Department of Dermatology, Venereology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
2. Department of Dermatology, Venereology and Leprosy, All India Institute of Medical Sciences, Bilaspur, Himachal Pradesh, India
3. Department of Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India,