| Norman PJ, Cook MA, Carey BS, Carrington CV, Verity DH, Hameed K, Ramdath DD, Chandanayingyong D, Leppert M, Stephens HA, Vaughan RW, SNP haplotypes and allele frequencies show evidence for disruptive and balancing selection in the human leukocyte receptor complex Immunogenetics56:225-37 2004 |