Medline ® Abstract for Reference 99
of 'Systemic chemotherapy for nonoperable metastatic colorectal cancer: Treatment recommendations'
Overall survival of patients with advanced colorectal cancer correlates with availability of fluorouracil, irinotecan, and oxaliplatin regardless of whether doublet or single-agent therapy is used first line.
Grothey A, Sargent D
J Clin Oncol. 2005;23(36):9441.