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平台:
Cambridge University Press Journals (歷年訂刊)
(Available from 2001 until 2003. Available from 2006 until 2015. Available from 2020 until 2022.)
DOAJ Directory of Open Access Journals
(Available from 2023.)
ProQuest Agricultural & Environmental Science Database
(Available from 2001/01/01 volume: 122 issue: 1. Most recent 1 year(s) not available.)
ProQuest SciTech Premium Collection
(Available from 2001/01/01 volume: 122 issue: 1. Most recent 1 year(s) not available.)
PubMed Central
(Available from 2020 volume: 147.)