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Table 1.

Inclusion and exclusion criteria.

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Fig 1.

Flow diagram of study selection.

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Table 2.

Characteristics of the included original studies.

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Table 2 Expand

Table 3.

Characteristics of the included original studies (continued).

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Table 3 Expand

Table 4.

Characteristics of the included study protocols.

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Table 4 Expand

Table 5.

Characteristics of the included study protocols (continued).

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Table 5 Expand