1. Exploring changes over time and characteristics associated with data retrieval across individual participant data meta-analyses: systematic review;Nevitt;BMJ,2017
2. Meta-analysis of individual participant data: rationale, conduct, and reporting;Riley;BMJ,2010
3. A decade of individual participant data meta-analyses: a review of current practice;Simmonds;Contemp Clin Trials,2015
4. Distribution and epidemiological characteristics of published individual patient data meta-analyses;Huang;PLoS One,2014
5. Individual participant data meta-analyses compared with meta-analyses based on aggregate data;Tudur Smith;Cochrane Database Syst Rev,2016