title: Authors' reply.
authors: Indian Association of Medical Journal Editors, New Delhi, India.
authors: Rakesh
authors: R
authors: Aggarwal
authors: Indian Association of Medical Journal Editors, New Delhi, India.
authors: Rajeev
authors: R
authors: Kumar
authors: Indian Association of Medical Journal Editors, New Delhi, India.
authors: Peush
authors: P
authors: Sahni