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Table 1 Types of retrieved documents

From: Analysis of global research output on diabetes depression and suicide

Document type

Frequency

% (N = 1664)

Article

1311

78.8

Review

160

9.6

Letter

63

3.8

Note

57

3.4

Conference paper

22

1.3

Editorial

19

1.1

Short Survey

18

1.1

Article in Press

14

0.8