PubMed provides access to bibliographic information, which includes MEDLINE, the premier bibliographic database covering the fields of medicine, nursing, dentistry, veterinary medicine, the healthcare system, and the preclinical sciences.
Web of Science is a multidisciplinary research platform which enables simultaneous cross-searching of a range of citation indexes and databases. It offers access to research tools like citation reports and cited reference searching, and personalized features such as saved searches and alerts. Web of Science includes the Social Sciences Citation Index and the Natural Sciences Citation Index.
DOAB is a community-driven discovery service that indexes and provides access to scholarly, peer-reviewed open access books and helps users to find trusted open access book publishers.