Remarkable Growth of Open Access in the Biomedical Field: Analysis of PubMed Articles from 2006 to 2010

• Keiko Kurata,

  Affiliation School of Library and Information Science, Keio University, Tokyo, Japan

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• Tomoko Morioka,

  Affiliation Kunitachi College of Music Library, Tokyo, Japan

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• Keiko Yokoi,

  Affiliation Tokyo Institute of Technology Library, Tokyo, Japan

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• Mamiko Matsubayashi

  * E-mail: mamiko@slis.tsukuba.ac.jp

  Affiliation Faculty of Library, Information and Media Studies, University of Tsukuba, Ibaraki, Japan

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