SH3TC2 and acute myeloid leukemia: By multivariate Cox proportional hazards regression analysis, we built a 3-lncRNA prognostic risk model to predict OS in AML cases as follows: risk score = (0.006899 × expression level of SH3TC2-DT) + (0.00026 × expression level of AF064858.1) + (0.016446 × expression level of AL133353.1) (Table 1).