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Table 2 Top 25 collaborating relationships, breast cancer-related items, 1949-2008

From: Breast cancer research output, 1945-2008: a bibliometric and density-equalizing analysis

Rank

Country 1

Country 2

No. Publications

1

Canada

United States

2,223

2

United Kingdom

United States

2,007

3

Germany

United States

1,601

4

Italy

United States

1,460

5

Japan

United States

1,294

6

France

United States

1,129

7

China

United States

953

8

Netherlands

United States

743

9

Sweden

United States

740

10

Australia

United States

723

11

Germany

United Kingdom

719

12

Switzerland

United States

668

13

France

United Kingdom

639

14

Italy

United Kingdom

638

15

Spain

United States

559

16

Netherlands

United Kingdom

548

17

France

Italy

541

18

Israel

United States

482

19

Australia

United Kingdom

459

20

Germany

Netherlands

450

21

France

Germany

447

22

Denmark

United States

442

23

Germany

Switzerland

439

24

Canada

United Kingdom

437

25

Finland

United States

433

  1. No. Publications, the number of items published as a result of cooperation between the two countries listed.