title: Reply to correspondence.
authors.affiliation: Maulana Azad Medical College and associated Lok Nayak Hospital, Bahadur Shah Zafar Marg, New Delhi, India.
authors.forename: Monica
authors.initials: M
authors.lastname: Juneja
authors.affiliation: Maulana Azad Medical College and associated Lok Nayak Hospital, Bahadur Shah Zafar Marg, New Delhi, India.
authors.forename: Rahul
authors.initials: R
authors.lastname: Jain
mesh_terms: D000375:Aging; D002659:Child Development Disorders, Pervasive / Q000453:epidemiology*; D002658:Developmental Disabilities / Q000453:epidemiology* / Q000534:rehabilitation*; D005260:Female; D006801:Humans; D008297:Male