Colonic Fishbone-Induced Perforation Involving a Penile Colorectal Carcinoma: A Case Report oleh Akira Imoto, Yuki Nagata, Yoshinori Shinohara, Hirota Miyazaki, Masanobu Fukumoto, Hidehiro Kitae, Masateru Asada, Masashi Noda, Kaoru Okada, Akira Asai, Kazuhide Higuchi, Hiroki Nishikawa