GAS5 and diffuse large B-cell lymphoma: The optimal sensitivity and specificity to differentiate DLBCL from healthy controls were 72.62% and 69.7%, respectively at a cutoff fold change > 1.34 for HOTAIR, 91.67% and 100%, respectively at a cutoff fold change < 0.45 for GAS5, 70.24% and 63.64%, respectively at a cutoff fold change > 1.05 for XIST.