%0 Journal Article %T Differences in Investigator-Initiated Trials between Japan and Other Countries: Analyses of Clinical Trials Sponsored by Academia and Government in the ClinicalTrials.gov Registry and in the Three Japanese Registries %A Tatsuya Ito %J Archive of "PLoS ONE". %D 2016 %R 10.1371/journal.pone.0148455 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4744062/