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. Author manuscript; available in PMC: 2019 Nov 1.
Published in final edited form as: Paediatr Perinat Epidemiol. 2018 Oct 18;32(6):512–532. doi: 10.1111/ppe.12505

Figure 1. Flow chart of literature review.

Figure 1.

Adapted from Moher D, Liberati A, Tetzlaff J, Altman DG. Preferred reporting items for systematic reviews and meta-analyses: the PRISMA statement. (http://www.bmj.com/content/339/bmj.b2535)