Chemotherapy options in elderly and frail patients with metastatic colorectal cancer (MRC FOCUS2): an open-label, randomised factorial trial.
Seymour MT, Thompson LC, Wasan HS, Middleton G, Brewster AE, Shepherd SF, O'Mahony MS, Maughan TS, Parmar M, Langley RE; FOCUS2 Investigators; National Cancer Research Institute Colorectal Cancer Clinical Studies Group.
Seymour MT, et al.
Lancet. 2011 May 21;377(9779):1749-59. doi: 10.1016/S0140-6736(11)60399-1. Epub 2011 May 11.
Lancet. 2011.
PMID: 21570111
Free PMC article.
Clinical Trial.