1. Department of Dermatology, Venereology and Leprosy, Mayo Institute of Medical Sciences, Barabanki, Uttar Pradesh, India
2. Department of Dermatology, Gupta Hospital, Dhamtari, Chhattisgarh, India
3. Department of Dermatology, Venereology and Leprosy, Dermax Skin Clinic, Lucknow, Uttar Pradesh, India,