Tehran University of Medical Sciences (TUMS), improved to the 735 place in the 2015 impact indicator of Leiden Ranking system. Compared to last year’s ranking, TUMS improved its position by 11 places.

Also, TUMS rank in 2015 Leiden Rankings in collaboration indicator is 282. 

The CWTS Leiden Ranking 2015 offers key insights into the scientific performance of 750 major universities worldwide. A sophisticated set of bibliometric indicators provides statistics on the scientific impact of universities and on universities’ involvement in scientific collaboration. The CWTS Leiden Ranking 2015 is based on Web of Science indexed publications from the period 2010–2013.