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Table 4 Top active institutions/organizations in publishing documents in air pollution – related respiratory health (1900 – 2017)

From: Outdoor air pollution and respiratory health: a bibliometric analysis of publications in peer-reviewed journals (1900 – 2017)

Institution/Organization (country affiliation) Frequency % h-index
N = 3635
Harvard School of Public Health 92 2.5 44
United States Environmental Protection Agency 89 2.4 36
University of Southern California 65 1.8 32
The University of North Carolina at Chapel Hill 64 1.8 26
University of Washington, Seattle 61 1.7 28
Inserm 60 1.7 24
The University of British Columbia 58 1.6 30
Utrecht University 53 1.5 29
Helmholtz Center Munich German Research Center for Environmental Health 52 1.4 29
Universitat Basel 52 1.4 23