DOI:
10.1055/s-00030576
Revista Brasileira de Ginecologia e Obstetrícia / RBGO Gynecology and Obstetrics
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References
Guyatt GH, Oxman AD, Schünemann HJ, Tugwell P, Knottnerus A.
GRADE guidelines: a new series of articles in the Journal of Clinical Epidemiology.
J Clin Epidemiol 2011;
64 (04) 380-382 . Doi: 10.1016/j.jclinepi.2010.09.011
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