%0 Journal Article %T Individual Participant Data (IPD) Meta-analyses of Randomised Controlled Trials: Guidance on Their Use %A Jayne F. Tierney  %A Claire Vale  %A Richard Riley  %A Catrin Tudur Smith  %A Lesley Stewart  %A Mike Clarke  %A Maroeska Rovers %J PLOS Medicine %D 2015 %I Public Library of Science (PLoS) %R 10.1371/journal.pmed.1001855 %U http://www.plosmedicine.org/article/info%3Adoi%2F10.1371%2Fjournal.pmed.1001855