title: Authors' reply.
authors: Department of Dermatology and Venereology, All India Institute of Medical Sciences, New Delhi, India. E-mail: sujay_khandpur@yahoo.com.
authors: Sujay
authors: S
authors: Khandpur
authors: Department of Dermatology and Venereology, All India Institute of Medical Sciences, New Delhi, India. E-mail: sujay_khandpur@yahoo.com.
authors: Kanika
authors: K
authors: Sahni