Adolescent 1 Adult 1 Aged 1 Aged, 80 and over 1 Article 1 CRI Case-Control Studies 1 Child 1 Child, Preschool 1 DNA polymorphism 1 Female 1 Gene Frequency 1 HLA Antigens 1 HLA antigen 1 HLA gene 1 Haplotypes 1 Humans 1 Kidney Transplantation 1 Male 1 Middle Aged 1 Polymorphism, Genetic 1 Renal Insufficiency, Chronic 1 Romania 1 Romanian (citizen) 1 Young Adult 1 adolescent 1 adult 1 aged 1 case control study 1 child 1