Fig. 1
Growth in meta-analysis over time. The occurrence of “meta-analysis” as a descriptor in articles indexed in PubMed over time (1966-2014) is shown, indicating rapid recent growth
Fig. 1 | BMC Psychology
Growth in meta-analysis over time. The occurrence of “meta-analysis” as a descriptor in articles indexed in PubMed over time (1966-2014) is shown, indicating rapid recent growth