KIR3DL1 and rheumatoid arthritis: Cen: centromeric; Tel: telomeric; KIR: killer-cell immunoglobulin-like receptor; HSCT: hematopoietic stem cell transplantation; RA: rheumatoid arthritis; VKH: Vogt-Koyanagi-Harada; NK: natural killer; SLE: systemic lupus erythematosus; NRM: non-relapse mortality; OS: overall survival; RFS: relapse-free survival; GVL: graft-versus-leukemia; aGVHD: acute graft-versus-host disease; RM: recurrent miscarriage; uRF: alloimmune reproductive failure; RPL: recurrent pregnancy loss; RIF: recurrent implantation failure