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平台:
DOAJ Directory of Open Access Journals
(Available from 2008 until 2015.)
EBSCOhost Academic Search Complete
(Available from 2004/05/01 until 2007/12/31.)
EBSCOhost STM Source
(Available from 2004/05/01 until 2007/12/31.)
PubMed Central Open Access
(Available from 2008 volume: 64 until 2014 volume: 70.)
Wiley Online Library
(Available from 2001 volume: 57 issue: 1 until 2007 volume: 63 issue: 12.)
Wiley Online Library - AutoHoldings Journals
(Available from 2001/01/01 volume: 57 issue: 1 until 2007/12/01 volume: 63 issue: 12.)