Progression-free survival as a surrogate for overall survival in advanced/recurrent gastric cancer trials: a meta-analysis.
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Paoletti X, et al. Among authors: ohtsu a.
J Natl Cancer Inst. 2013 Nov 6;105(21):1667-70. doi: 10.1093/jnci/djt269. Epub 2013 Oct 9.
J Natl Cancer Inst. 2013.
PMID: 24108811
Free PMC article.