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Table 6 Top 10 productive institution in tramadol-related research

From: Worldwide research productivity on tramadol: a bibliometric analysis

SCRa

Institute

N (%)

N = 2059 (100 %)

Affiliation of the institute

1st

Grunenthal GmbH

47 (2.28)

Germany

2nd

Tehran University of Medical Sciences

29 (1.41)

Iran

3rd

Ortho-McNeil Pharmaceutical Incorporated

25 (1.21)

USA

4th

Çukurova Üniversitesi

24 (1.17)

Turkey

5th

R. W. Johnson Pharmaceutical Research Institute

17 (0.83)

USA

6th

Universidade de Sao Paulo

16 (0.78)

Brazil

7th

University of Tennessee, Knoxville

13 (0.63)

USA

8th

Universität Bonn

12 (0.58)

Germany

8th

Università degli Studi di Roma La Sapienza

12 (0.58)

Italy

8th

Poznan University of Medical Sciences

12 (0.58)

Poland

8th

Bethune International Peace Hospital of the PLA

12 (0.58)

China

  1. SCR standard competition ranking, USA United States of America
  2. aEqual institutions have the same ranking number and then a gap is left in the ranking numbers