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平台:
DOAJ Directory of Open Access Journals
(Available from 2005 until 2016.)
EBSCOhost Academic Search Complete
(Available from 2007/03/01 until 2018/07/31.)
EBSCOhost Health Policy Reference Center
(Available from 2007/03/01 until 2018/07/31.)
EBSCOhost STM Source
(Available from 2007/03/01 until 2018/07/31.)