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SHNU: Graduate Student Information Session: Open Access Resources
科学信息素养及电子书、免费资源的利用 - Science Information Literacy, E-books, and Free Information Resources
Free digital archive of biomedical and life sciences journal literature at the U.S. National Institutes of Health (NIH). Any research articles resulting from NIH funded research are required to be deposited here no later than 12 months after publication.