Phase I/II study of oxaliplatin with oral S-1 as first-line therapy for patients with metastatic colorectal cancer. - Yamada, Y.; Tahara, M.; Miya, T.; Satoh, T.; Shirao, K.; Shimada, Y.; Ohtsu, A.; Sasaki, Y.; Tanigawara, Y. (British Journal of Cancer, 2008)