Author information Biju Vasudevan MD (Dermatology, Venereology, and Leprology) Fellowship (Dermatosurgery) Professor and Head, Department of Dermatology, Armed Forces Medical College, Pune, Maharashtra, India Bhabani Singh MBBS MD (Skin and VD) Associate Professor, Department of Dermatology, Venereology and Leprology, Institute of Medical Sciences and SUM Hospital, Bhubaneswar, Odisha, India Shrikant Kumavat DDVL Consultant, Department of Dermatology, Dr Kumavat Skin Clinic, Nashik, Maharashtra, India