1 Department of Dermatology and STD, North Delhi Municipal Corporation Medical College and Hindu Rao Hospital, New Delhi, India. Electronic address: dr.deepakjakhar@yahoo.in.
2 Department of Dermatology and STD, ESI - Post Graduate Institute of Medical Science and Research, New Delhi, India.
3 Department of Dermatology and STD, North Delhi Municipal Corporation Medical College and Hindu Rao Hospital, New Delhi, India.