Bai, R. et al. 2021. The Validity of Neutrophil/lymphocyte Ratio as A Predictive Factor for Systemic Inflammatory Response Syndrome after Flexible Ureteroscopy Lithotripsy. Urology Journal. 19, 01 (Jun. 2021), 17–21. DOI:https://doi.org/10.22037/uj.v19i01.6570.