Kurata K, Morioka T, Yokoi K, Matsubayashi M (2013) Remarkable Growth of Open Access in the Biomedical Field: Analysis of PubMed Articles from 2006 to 2010. PLoS ONE 8(5): e60925. doi:10.1371/journal.pone.0060925 Introduction This study clarifies the trends observed in open access (OA) in the biomedical field between 2006 and 2010, and explores the possible explanations for the differences in OA r