Figure 4A-4B depicts the folic acid phenotypes for A) FOLR1 (median=313 counts) and TYMS (median=341 counts) and B) FPGS (median=665 counts) and TYMS. With respect to these phenotypes, SCLC showed one predominant pattern (fT), indicating lower folic acid uptake and activation compared to their turnover rate. Here, TYMS is linked to small cell lung carcinoma.