Index Copernicus
Google scholar
Biomedical research directory
Index Copernicus International S.A.
Yale University and Georgetown University. The archive of Lauinger Library.
The ourGlocal Journal database
Geneva Foundation for Medical Education and Research
(WHO Collaborating Centre in Education and Research in Human Reproduction)
The Directory of Open Access Journals
(Hosted and maintained by Lund University Libraries)
Pharmaceutical Sciences Open Access Resources
Embase Database Elsevier
(Embase is a Elsevier Product)
JadounScience
(Journal Access Directory Open Utility Network of Science)
Chemical Abstracts Service (CAS)
(A division of the American Chemical Society)
EBSCO Discovery Service USA
(EBSCO Information Services (USA & Canada)
New York - Chung Yuan Christian University Library
Journals - Research - Gentofte Hospital
Budapest University of Technology and Economics: National Technical Information Centre and Library
University of Petra, Amman - Jordan
UTS Library:University of Technology Sydney
Seoul, Hanyang University Paiknam Library
ORCID: Connecting Research and Researchers