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平台:
DOAJ Directory of Open Access Journals
(Available from 2003.)
ProQuest Biological Science Database
(Available from 2016/01/01 until 2016/12/31. Available from 2018/01/01. Available from 2005/09/01 until 2006/12/31.)
ProQuest SciTech Premium Collection
(Available from 2016/01/01 until 2016/12/31. Available from 2018/01/01. Available from 2005/09/01 until 2006/12/31.)
PubMed Central Open Access
(Available from 2015 volume: 2015.)
Taylor & Francis Online Journals
(Available from 2007 until 2007.)