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. 2019 Dec 2;56(1):178–192. doi: 10.3892/ijo.2019.4928

Figure 1.

Figure 1

Methodological flow diagram of the systematic review process. Among these, other sources included potentially eligible articles or abstracts which were published in major academic conferences (European Society of Urology, American Urological Association, Asian Society of Urology, American Society of Clinical Oncology, European Society for Medical Oncology amongst others). HR, hazard ratio; RR, risk ratio, OR, odds ratio; CI, confidence interval.