1 Department of Dermatology, Venereology and Leprology, Post Graduate Institute of Medical Education and Research, Chandigarh, India E-mail: vinay.keshavmurthy@gmail.com.
2 Department of Pulmonology, Post Graduate Institute of Medical Education and Research, Chandigarh, India.
3 Department of Ophthalmology, Post Graduate Institute of Medical Education and Research, Chandigarh, India.
4 Department of Histopathology, Post Graduate Institute of Medical Education and Research, Chandigarh, India.