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Table 1.

Inclusion criteria (IC).

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Table 2.

Assessment of the methodological quality of the included studies.

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Fig 1.

Flow of information through the different phases of the systematic review.

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Table 3.

Overview of the studies that were included in the systematic review.

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Table 3 Expand

Table 4.

Methodological quality of the included studies.

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Table 5.

Results of the systematic review.

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Table 5 Expand