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平台:
Lippincott Williams & Wilkins Journals [OVID]
(Available from 1987 volume: 1 issue: 1.)
Ovid Journals - AutoHoldings
(Available from 1987/02/01 volume: 1 issue: 1.)
ProQuest SciTech Premium Collection
(Available from 2005/02/01 until 2011/06/30.)