Risk factors for rectal wall infiltration in hydrogel spacer placement: Influence of biopsy approach. - Hirose, Kohei; Nakanishi, Yasukazu; Ogasawara, Ryo Andy; Imasato, Naoki; Inoue, Minoru; Sekiya, Ken; Kataoka, Madoka; Hojo, Hidehiro; Yajima, Shugo; Zenda, Sadamoto; Masuda, Hitoshi (International Journal of Urology, 2025)