At the baseline of the study and after 4-week treatment, all participants completed the questionnaires, including the NIH-CPSI and I-PSS for LUTS.[6ā7] All subjects were assessed for total prostate volume (TPV) by trans-rectal ultrasonography (using Logiq 5 Pro by GENERAL ELECTRIC, Milwaukee, WI, USA) and for urinary flow rates by uroflowmetry (using Urodyn 1000 by MEDTRONIC, Minneapolis, MN, USA).
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