Datu-basea
PubMed Central (PMC) Open Access
DOAJ: Directory of Open Access Journals
3
SpringerLink Journals Fully Open Access
2
BioMed Central
1
EBSCO Open Access Journals
1
JSTOR Arts & Sciences VI Archive Collection
1
ScienceDirect Open Access Titles
1
SocINDEX with Full Text
1
Springer Nature Complete Journals
1