1. ShriRam Yadav Skin Clinic, Narnaul, Haryana, India
2. Department of Dermatology, Venereology and Leprosy, Jawaharlal Nehru Medical College, Datta Meghe Institute of Medical Sciences, Wardha, Maharashtra, India
3. Department of Dermatology, KPC Medical College and Hospital, Kolkata, West Bengal, India,