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DOAJ Directory of Open Access Journals
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Online resource available at:
PubMed Central
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Online resource available at:
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Authentication notes:
ONLY Selected Full Text Available
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Online resource available at:
ROAD: Directory of Open Access Scholarly Resources
- Available from 2015.
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Online resource available at:
Springer Nature OA Free Journals
- Available from 12/01/2015 volume: 1 issue: 1.