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平台:
Karger Journal Archive
(Available from 1945 volume: 1 issue: 1 until 2017.)
ProQuest Biological Science Database
(Available from 1999/01/01 volume: 164 issue: 1 until 2015/12/31 volume: 200 issue: 6.)
ProQuest SciTech Premium Collection
(Available from 1999/01/01 volume: 164 issue: 1 until 2015/12/31 volume: 200 issue: 6.)