How individual participant data meta-analyses have influenced trial design, conduct, and analysis. Tierney, J. F.; Pignon, J. P.; Gueffyier, F.; Clarke, M.; Askie, L.; Vale, C. L.; Burdett, S.; Cochrane, I. P. D. Meta-analysis Methods Group. J Clin Epidemiol. 2015; 1325-35: p.1325-35. doi:10.1016/j.jclinepi.2015.05.024 10.1016/j.jclinepi.2015.05.024. Epub 2015 Jun 3.Article