Risk factors for preterm birth: an umbrella review of meta-analyses of observational studies

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Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

1. 1Bias in meta-analysis detected by a simple, graphical test1997 · 56,577 citations
2. 2Preterm Birth: Causes, Consequences, and Prevention2007 · 1,584 citations
3. 3Prior uterine evacuation of pregnancy as independent risk factor for preterm birth: a systematic review and metaanalysis2015 · 96 citations
4. 4Association Between Maternal Human Papillomavirus Infection and Adverse Pregnancy Outcomes: Systematic Review and Meta-Analysis2020 · 70 citations
5. 5The role of meta-analyses and umbrella reviews in assessing the harms of psychotropic medications: beyond qualitative synthesis2018 · 46 citations