Inhibitory effects of Pueraria mirifica aqueous extracts on 5α-reductase and prostate histomorphometry in testosterone induced benign prostatic hyperplasia Sprague Dawley rats by Masrudin, Siti Saleha, Razwan, Nur Izzah Athirah, Mat Taib, Che Norma, Mohd Nor, Nurul Huda, Mohd Asri, Siti Fadziyah, Alias, Zazali, Mohamad, Jamaludin