DOI: 10.1055/s-00000009

American Journal of Perinatology

References

Makvandi S, Latifnejad Roudsari R, Sadeghi R, Karimi L.
Effect of birth ball on labor pain relief: A systematic review and meta-analysis.

J Obstet Gynaecol Res 2015;
41 (11) 1679-1686

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