Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) "ISHIZUKA, Osamu and IWATA, Kenji and IGAWA, Yasuhiko and NISHIZAWA, Osamu",Significance of PSA-density: analysis in PSA gray zone cases,Hinyokika Kiyo,0018-1994,泌尿器科紀要刊行会,2001-09,47,9,611-613,https://cir.nii.ac.jp/crid/1050001202177228800,