Table 1 . Top 5 Iranian Biomedical Research Centers according to number of publications and citations in Scopus between 1991 and 2010 .
| IBRCs | Number of publications | % | IBRCs | Number of citations | % |
| Drug Applied Research Center of Tabriz UMSs | 369 | 7.24 | Drug Applied Research Center of Tabriz UMSs | 1322 | 7.78 |
| Royan Institute | 314 | 5.74 | Royan Institute | 1300 | 7.65 |
| Biotechnology Research Center of Tehran UMSs | 286 | 5.23 | Biotechnology Research Center of Tehran UMSs | 1005 | 5.91 |
| Biotechnology Research Centerof Pasteur Institute of Iran | 195 | 3.57 | Pharmaceutical Research Center of Mashhad | 830 | 3.27 |
| Pharmaceutical Research Center of Mashhad | 175 | 3.20 | Molecular Immunology Research Center of Tehran UMSs | 669 | 4.88 |