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Table 3 Clinical trials by phase

From: Rotavirus vaccine clinical trials: a cross-sectional analysis of clinical trials registries

Phase

Number

Per cent

Phase 1

23

9.50

Phase 1/phase 2

8

3.31

Phase 2

23

9.50

Phase 2/phase 3

2

0.83

Phase 3

80

33.06

Phase 4

27

11.15

Not applicable

39

16.12

Not indicated

40

16.53

Grand total

242

100.00