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Fig 1.

Flowchart of literature search.

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Table 1.

Characteristics of included studies (n = 10).

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Fig 2.

Risk of bias assessment.

(A) Randomised studies assessed using the ROB 2.0 tool. (B) Non randomised trials assessed using the ROBINS-I tool.

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Fig 2 Expand

Table 2.

Summary of results of included studies.

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Table 2 Expand

Table 3.

Review of evidence from qualitative studies.

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Table 3 Expand