DOI:
10.1055/s-00030576
Revista Brasileira de Ginecologia e Obstetrícia / RBGO Gynecology and Obstetrics
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References
Stang A.
Critical evaluation of the Newcastle-Ottawa scale for the assessment of the quality of nonrandomized studies in meta-analyses.
Eur J Epidemiol 2010;
25 (09) 603-605 . Doi: 10.1007/s10654-010-9491-z
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