KLRK1 and bladder transitional cell carcinoma: Human NKG2D binds to a range of stress-inducible NKG2D-L, such as MICA, MICB, and ULBPs 1–6, and so we next determined patient prognosis for BLCA tumors stratified for KLRK1 expression and each NKG2D-L, respectively (Supplementary Figure 6).