National Child Development Study: Age 50, Sweep 8, 2008-2009
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Abstract copyright UK Data Service and data collection copyright owner. The National Child Development Study (NCDS) is a continuing longitudinal study that seeks to...
本数据集的版权归英国数据服务(UK Data Service)及数据采集版权所有者所有。国家儿童发展研究(National Child Development Study, NCDS)是一项持续开展的纵向研究,旨在……



