![](/img/cover-not-exists.png)
Validation of key Denver Developmental Screening Test items: A preliminary study
William K. Frankenburg, Cynthia Y. Ker, Stephen Engelke, Earl S. Schaefer, Susan M. ThorntonVolume:
112
Year:
1988
Language:
english
DOI:
10.1016/s0022-3476(88)80167-7
File:
PDF, 1005 KB
english, 1988