As an example, in 2018, Satar et al. [30] sorted two subpopulations of NSCLC known as the triple positive (EpCAM+/CD166+/CD44+) and triple negative (EpCAM-/CD166-/CD44-) subpopulations by fluorescence-activated cell sorting (FACS). The gene discussed is CD44; the disease is non-small cell lung carcinoma.