National Centre for Longitudinal Data - eNewsletter #1 Attachments National Centre for Longitudinal Data - eNewsletter #1 [349.7 kB]Listen to PDF National Centre for Longitudinal Data - eNewsletter #1 [176.6 kB] Date: 1 July 2015 Issue 1 of the National Centre for Longitudinal Data eNewsletter.Last updated: 14 July 2015 - 4:23pm