To examine the association between MCT4 expression and prognosis in NSCLC patients, we searched the public prognosis databases PROGgeneV2 (http://watson.compbio.iupui.edu/chirayu/proggene/database/?url=proggene) and Oncomine (https://www.oncomine.org/resource/login.html). This evidence concerns the gene SLC16A3 and non-small cell lung carcinoma.