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Change from baseline to week 8 and week 16 in total IPSS (International Prostate Symptom Score) in the 0.2 and 0.4 mg group, 0.2 mg group: 8 weeks tamsulosin 0.2 mg once daily+additional 8 weeks tamsulosin 0.2 mg once daily, 0.4 mg group: 8 weeks tamsulosin 0.2 mg once daily+additional 8 weeks tamsulosin 0.4 mg once daily.
