Use of positive and negative words in scientific PubMed abstracts between 1974 and 2014: retrospective analysis
Crossref DOI link: https://doi.org/10.1136/bmj.h6467
Published Online: 2015-12-14
Update policy: https://doi.org/10.1136/crossmarkpolicy
Vinkers, Christiaan H
Tijdink, Joeri K
Otte, Willem M
Text and Data Mining valid from 2015-12-14
