id.elsevier.comの競合サイトトップ10

sciencedirect.com

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

scopus.com

elsevier’s scopus, the largest abstract and citation database of peer-reviewed literature. search and access research from the science, technology, medicine, social sciences and arts and humanities fields.

link.springer.com

providing access to millions of research articles and chapters from science, technology and medicine, and humanities and social sciences

mdpi.com

MDPI is a publisher of peer-reviewed, open access journals since its establishment in 1996.

scholar.google.com

google scholar provides a simple way to broadly search for scholarly literature. search across a wide variety of disciplines and sources: articles, theses, books, abstracts and court opinions.

researchgate.net

Access 160+ million publication pages and connect with 25+ million researchers. Join for free and gain visibility by uploading your research.

onlinelibrary.wiley.com

one of the largest and most authoritative collections of online journals, books, and research resources, covering life, health, social, and physical sciences.

pubmed.ncbi.nlm.nih.gov

"Humans"[MeSH] - Search Results - PubMed

tandfonline.com

search and explore the millions of quality, peer-reviewed journal articles published under the taylor & francis and routledge imprints.

nature.com

Nature is the foremost international weekly scientific journal in the world and is the flagship journal for Nature Portfolio. It publishes the finest ...