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平台:
Nature Journals Online
(Available from 2005 until 2017.)
Ovid Journals - AutoHoldings
(Available from 2009/04/01 volume: 5 issue: 4 until 2009/12/31 volume: 5 issue: 12.)
SpringerLink Journals - AutoHoldings
(Available from 2005/11/01 volume: 1 issue: 1 until 2017/12/01 volume: 13 issue: 12.)