Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
A. Map of average impact factor/country. There are no big differences between the average IF/country. B. Average impact factor per country. Over 30 countries achieved an average IF higher than 5. Values are expressed as means ± standard error (S.E.M.).
