MICA and gastric cancer: Even though it is clearly necessary to increase the cohort of study population for future investigations on NKG2D ligands (NKG2DL) polymorphisms, this time considering ethnical information and including human leukocyte antigen (HLA) analysis for a full characterization, we believe that our findings shed some light on the susceptibility and prognostic value of MICA polymorphisms in gastric cancer.