1 Department of Dermatology, Venereology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
2 Department of Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
3 Department of Dermatology, Venereology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India; drrahulpgi@yahoo.com.