A Diverse and Comprehensive Multidisciplinary Research ...

Impact factor of 9.7 for 2016 5-year impact factor of 10.4 Eigenfactor of 1.2 for 2016 Circulation of 5,400 Subscribers in more than 60 countries Free online access in more than 115 developing countries PNAS will publish nearly 22,000 pages of high-impact research in 2017 Published daily online and in … ................
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