Capturing NK alloreactivity in HSCT from unrelated donors is certainly therefore more complex than selecting donors with multiple activating KIR genes.24,25 Induction of tolerance in NK cells that express activating receptors through chronic contact with the ligand offers been described in mice14-16; we have now show an association between clinical outcomes and NK tolerance in HSCT from unrelated donors. An interesting finding in this research can be that KIR2DS1-positive donors heterozygous for HLA-C2 did not have evidence of diminished function, as assessed by control of leukemic relapse.Preterm infants were 3.7 times as likely as term infants to have got stones . Furthermore, children exposed to high-melamine formulation were 2.3 times as likely to possess suspected stones as those exposed to no-melamine formula . Discussion In this scholarly research, using two different statistical models, we found that exposure to high-melamine formula increased the chance of urolithiasis among small children. The total results indicate that most children with melamine-associated urolithiasis had nonspecific symptoms and urinary findings. These findings comparison with the present recommendations posted on the internet site of the Ministry of Health of China was detected in his still left renal pelvis.