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Effect of treatment on IPSS. (A) Percent change ± SD in total IPSS at week 12. (B) Mean ± SE of IPSS at baseline, weeks 4, 8, and 12. *p < 0.01 tamsulosin week 4 vs. tamsulosin week 8. GITS = gastrointestinal therapeutic system; IPSS, International Prostate Symptom Score
