Authors' reply.
S K
SK
Raina
V
V
Kashyap
A K
AK
Bhardwaj
D
D
Kumar
V
V
Chander
D002659:Child Development Disorders, Pervasive / Q000175:diagnosis* / Q000208:ethnology*; D005260:Female; D006801:Humans; D008297:Male; D011159:Population Surveillance / Q000379:methods*