Hubungan antara derajat trabekulasi dan volume kandung kemih dengan gejala saluran kemih bawah pasca reseksi prostat transuretra di RSUP Haji Adam Malik Medan = Correlation between trabeculation grade and bladder volume with lower urinary tract symptoms after transurethral resection of the prostate in benign prostate hyperplasia patients at Haji Adam Malik Hospital Medan / Aditya Pramaviri