afni.nimh.nih.gov

Neonates and infants should likely have a different reference template---often their scans have different contrasts/properties, even in structural imaging.

For children, say, 4-5 and older, the Haskins might be the closest available, and also will become increasingly age-matched over the duration of your scanning, as well. It would also help with consistency over much of the age span.

--pt