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Literature search and selection criteria

ZW Zhenghao Wang
XH Xiao He
YB Yunjin Bai
JW Jia Wang
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We systematically searched several databases including PubMed, Embase, Web of Science, EBSCO, and the Cochrane library from January 1980 to October 2019 using the following keywords: tranexamic acid, hemostatic, blood loss, stone, and percutaneous nephrolithotomy. The reference lists of retrieved studies and relevant reviews were also hand-searched and the process above was performed repeatedly to include additional eligible studies.

The inclusion criteria are presented as follows: (1) study design is an RCT; (2) intervention treatment was TXA compared with placebo (or no intervention) for patients who underwent PCNL; (3) adequate reported data for analysis were provided; and (4) all languages were included (translated into English if necessary).

Copyright and License information: The Author(s) ©2020
Creative Commons Non Commercial CC BY-NC: This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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