pone.0200330.g001.tif (1.49 MB)

Flow chart of studies through the review.

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posted on 12.07.2018, 17:43 by Fernanda Márcia Rodrigues Martins Ferreira, Maria Emília Abreu Chaves, Vinícius Cunha Oliveira, Adriana Maria Valladão Novais Van Petten, Claysson Bruno Santos Vimieiro

*Papers may have been excluded for failing to meet more than one inclusion criteria. Abbreviations: RCT = randomized controlled trials; QRCT = quasi-randomized controlled trials.

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