word production and comprehension

[Kasumi Yamamoto]

Dear all,

I am looking for references for young children's word production and
comprehension.  In particular, I am interested in the cases that word
production precedes comprehension.  Majority of research support that
comprehension is ahead of production, but does anyone know the opposite
case?

Thank you very much in advance for your help.

Kasumi Yamamoto
Williams College