This study included @ cases of BPH with OAB , with a disease course > or = @ months , daily urination > or = @ times , nocturnal urination > or = @ times , urine volume < @ ml per time , International Prostate Symptom Score ( IPSS ) > or = @ , OAB symptom score ( OABS ) > or = @ , quality of life score ( QOL ) > or = @ , post-void residual ( PVR ) < or = @ ml , maximum urinary flow ( Qmax ) > or = @ ml/s , prostate weight @-@ g , and PSA < @ microg/L .