Fig. 1From: Wasted research when systematic reviews fail to provide a complete and up-to-date evidence synthesis: the example of lung cancerFlow diagram of selection of systematic reviews and randomized controlled trials of second-line treatments in advanced non-small cell lung cancer. *Additional full-text articles not identified by searching bibliographical databases; $63 full-text articles and 44 conference abstracts; ¤69 full-text articles, 70 conference abstracts, 28 posted results, and 5 industry/FDA reportsBack to article page