Free online availability substantially increases a paper's impact.
The Need for Open-access Structured Data in Cardiology Research. Biomed Data J. 2015;1(1):36-38. .
National Library of Medicine (brackets, no "et al."): Free online availability substantially increases a paper's impact. Nature. 2001;411(6837):521. .
DOI: 10.1038/35079151
National Library of Medicine (grant proposals with PMCID/PMID): Free online availability substantially increases a paper's impact. Nature. 2001;411(6837):521. .
DOI: 10.1038/35079151
National Library of Medicine (NLM) - Grant with PMID: Free online availability substantially increases a paper's impact. Nature. 2001;411(6837):521. .
DOI: 10.1038/35079151