Index and ranking

Impact factor is 2.916 according to the 2017 release of Journal Citation Reports.

Impact factor is 3.609 according to the 2016 release of Journal Citation Reports.

Impact factor of the journal is 3.271, according to 2015 edition of Journal Citation Reports® from Thomson Reuters.

Impact factor of the journal was 2.639, according to 2014 edition of Journal Citation Reports® from Thomson Reuters.