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Table 3 Core countries publishing documents on substandard and falsified medical products

From: Substandard and falsified medical products: bibliometric analysis and mapping of scientific research

Rank

Author Name

Frequency (all documents) (%, M = 978)

Frequency (research articles only (%, N = 542)

Frequency (Review articles only) (%, N = 139)

TLS

1

United States

213 (21.8)

113 (20.8)

48 (34.5)

100

2

United Kingdom

117 (12.0)

62 (11.4)

26 (18.7)

99

3

Germany

101 (10.3)

49 (9.0)

19 (13.7)

9

4

Belgium

54 (5.5)

31 (5.7)

11 (7.9)

28

5

France

41 (4.2)

26 (4.8)

8 (5.8)

18

6

India

39 (4.0)

23 (4.2)

6 (4.3)

19

7

China

29 (3.0)

24 (4.4)

2 (1.4)

13

8

Switzerland

27 (2.8)

14 (2.6)

7 (5.0)

19

9

Netherlands

20 (2.0)

11 (2.0)

4 (2.9)

21

10

Australia

19 (1.9)

6 (1.1)

6 (4.3)

18

10

Italy

19 (1.9)

12 (2.2)

2 (1.4)

8

  1. TLS Total link strength. It is a measure of international research collaboration. The higher the TLS value, the higher the extent of international research collaboration. Values of the TLS were calculated and obtained directly from the VOSviewer program