Authors (8941)
Zhang, Ya.
Name:Zhang, Ya.
Send email to: Zhang, Ya.
More information:
Yanfeng Zhang
Department of Integrated Early Childhood Development, Capital Institute of Pediatrics, Beijing, China
Data has been last edited on Oct 04 2015
Celebrating 10 years: Web Survey Methology book
Name:Zhang, Ya.
Send email to: Zhang, Ya.
More information:
Yanfeng Zhang
Department of Integrated Early Childhood Development, Capital Institute of Pediatrics, Beijing, China
Data has been last edited on Oct 04 2015