PubMed® comprises more than 36 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full text content from PubMed Central and publisher web sites.

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As a global leader in information and analytics, Elsevier helps researchers and healthcare professionals advance science and improve health outcomes

Subscription and open access journals from Sage, the world's leading independent academic publisher.

Download and read 240 million open access research papers

Grey Literature, Preprints, E-prints, Technical Reports

ScienceDirect is the world's leading source for scientific, technical, and medical research. Explore journals, books and articles.

Journal, Articles, Abstract, Online Publisher, international, Free, open access, peer review

Scientific Research Publishing is an academic publisher with more than 200 open access journal in the areas of science, technology and medicine. It also publishes academic books and conference proceedings.

The System for Information on Grey Literature in Europe used to give open access to 700.000 bibliographical references of grey literature (paper) produced in Europe and allowed to export records and locate the documents. Examples of grey (gray) literature include technical or research reports, doctoral dissertations, some conference papers, some official publications, and other types ... Read more

TIB, as the world's largest specialised library for science and technology and the University Library of Leibniz Universität Hannover, enables to work with unique collections. TIB offers access to a wide range of electronic resources.

Providing access to millions of research articles and chapters from Science, Technology and Medicine, and Humanities and Social Sciences

The Grey Literature Network Service, widely known as GreyNet, facilitates dialog, research, and communication between persons and organisations in the field of grey literature. GreyNet further seeks to identify and distribute information on and about grey literature in networked environments. Its main activities include the International Conference Series on Grey Literature, the creation and maintenance of web-based resources, the establishment of a moderated Listserv, GL Compendium, The Grey Journal, and Course curricula for LIS Colleges and Schools.

Repository and Portal to Good Practices and Resources in Grey Literature

The blue social bookmark and publication sharing system.

Search and explore the millions of quality, peer-reviewed journal articles published under the Taylor & Francis, Routledge and Dove Medical Press imprints.

Genamics JournalSeek is the largest completely categorized database of scholarly journal information available on the internet.

The world’s largest collection of open access research papers