7Spiro SG, Silvestri GA. One hundred years of lung cancer [J]. Am J Respir Crit Care Med, 2005,172 (5) : 523-529.
8Wells GA, Shea B, O' Connell D, et al. The Newcastle-Ottawa Scale (NOS) for assessing the quality of nonrandomised studies in meta-analyses. Ottawa: Ottawa Hospital Research Institute [Z]. 2012. http://www.ohri.ca/programs/clinical_epidemiology/ nos manual.
9Wood JA. Methodology for dealing with duplicate study effects in a meta-analysis[J]. Organ Res Methods, 11 ( 1 ) : 79-95.