Department of Dermatology and Venereology, All India Institute of Medical Sciences, AIIMS, New Delhi, India

Address for correspondence: Dr. M. Ramam, Room 4072, 4^th Floor Teaching Block, Department of Dermatology and Venereology, AIIMS, New Delhi, India. E-mail:

Received May 27, 2022

Received in revised form June 30, 2022

Accepted July 22, 2022