కేసు నివేదిక
                  A Case of Pfetin Negative Gastrointestinal Stromal Tumor (GIST),
Metastasized to the Liver Five Years after Surgery: A Surgical Challenge
                  
                      -  Shunsuke Sakuraba, Hajime Orita, Tomoaki Ito, Tomoyuki Kushida, Mutsumi Sakurada, Hiroshi Maekawa, Ryo Wada and Koichi Sato