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. 2019 Jun 25;18(2):1366–1374. doi: 10.3892/etm.2019.7710

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Copyright: © Zhu et al.

This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Figure 4. — Comparison of percutaneous nephrolithotripsy or retrograde intrarenal surgery for patients with renal stones in terms of hospital stay. WMD, weighted mean difference; CI, confidence interval.