DOI: 10.1055/s-00030576

Revista Brasileira de Ginecologia e Obstetrícia / RBGO Gynecology and Obstetrics

References

Shea BJ, Reeves BC, Wells G, Thuku M, Hamel C, Moran J. et al.
AMSTAR 2: a critical appraisal tool for systematic reviews that include randomised or non-randomised studies of healthcare interventions, or both.

BMJ 2017;
358: j4008
DOI: 10.1136/bmj.j4008.

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