論文（英文）
A study of factors influencing prognosis after resection of hepatic metastases from colorectal and gastric carcinoma.
Imamura H, Matsuyama Y, Shimada R, Kubota M, Nakayama A, Kobayashi A, Kitamura H, Ikegami T, Miyagawa SI, Kawasaki S. A study of factors influencing prognosis after resection of hepatic metastases from colorectal and gastric carcinoma. American Journal of Gastroenterology. 2001; 96(11):3178-3184.