A Randomized Trial of Ionic Silver Dressing to Reduce Surgical Site Infection After Gastrointestinal Surgery oleh Chihiro Kosugi, MD, Keiji Koda, MD, Hiroaki Shimizu, MD, Masato Yamazaki, MD, Kiyohiko Shuto, MD, Mikito Mori, MD, Akihiro Usui, MD, Hiroyuki Nojima, MD, Satoshi Endo, MD, Hiroo Yanagibashi, MD, Hidehito Arimitsu, MD, Toru Tochigi, MD, Tetsutaro Sazuka, MD, Mihono Hirota, MD, Hideyuki Kuboki, MD