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平台:
EBSCOhost Academic Search Complete
(Available from 1975.)
EBSCOhost Business Source Complete
(Available from 1975/01/01.)
EBSCOhost Health Policy Reference Center
(Available from 1975/01/01.)
EBSCOhost OmniFile Full Text Select
(Available from 1998/11/01.)
EBSCOhost Professional Development Collection
(Available from 1975.)
EBSCOhost STM Source
(Available from 1975/01/01.)
ProQuest Agricultural & Environmental Science Database
(Available from 1992/01/01 volume: 82 issue: 1.)
ProQuest Biological Science Database
(Available from 1992/01/01 volume: 82 issue: 1.)
ProQuest Political Science Database
(Available from 1992/01/01 volume: 82 issue: 1.)
ProQuest SciTech Premium Collection
(Available from 1992/01/01 volume: 82 issue: 1.)
PubMed Central
(Available from 1971 volume: 61. Most recent 2 year(s) not available.)