Furthermore, the immunoblot analysis showed that EML4-ALK v1 was present in NCI-H3122 pulmonary adenocarcinoma cells, and EML4-ALK v3a/b was present in NCI-H2228 pulmonary adenocarcinoma cells and PDT-LUAD#119 lung tumoroids (Fig. 3d). The gene discussed is EML4; the disease is medical procedure.