National Centre for Longitudinal Data - eNewsletter #2 Attachments National Centre for Longitudinal Data - eNewsletter #2 [191.9 kB]Listen to PDF National Centre for Longitudinal Data - eNewsletter #2 [1.9 MB] Date: 1 January 2016 Issue 2 of the National Centre for Longitudinal Data eNewsletter. Last updated: 8 January 2016 - 3:31pm