EGFL7 and adenocarcinoma: To investigate the methylation status of EGFL7 in lung cancer tumor tissues and normal tissues, we performed the differential methylation analysis of EGFL7 CG loci in patients with adenocarcinoma (AC) and squamous cell carcinoma (SCC) using the SurvivalMeth database (http://bio-bigdata.hrbmu.edu.cn/survivalmeth).