Harris JP, Tegoli J, Swanson J, Fisher N, Gavin J, Noades J. A nebulous antibody responsible for crossmatching difficulties (Chido). Vox Sang 1967;12:140–2.10.1111/j.1423-0410.1967.tb03078.x6016836Search in Google Scholar
Longster G, Giles CM. A new antibody specificity, anti-Rga, reacting with a red cell and serum antigen. Vox Sang 1976; 30:175–80.10.1111/j.1423-0410.1976.tb02810.x1251581Search in Google Scholar
Giles CM, Gedde-Dahl T, Jr, Robson EB, et al. Rga (Rodgers) and the HLA region: linkage and associations. Tissue Antigens 1976;8:143–9.10.1111/j.1399-0039.1976.tb00578.xSearch in Google Scholar
O’Neill GJ, Yang SY, Tegoli J, Berger R, Dupont B. Chido and Rodgers blood groups are distinct antigenic components of human complement C4. Nature 1978;273:668–70.10.1038/273668a078453Search in Google Scholar
Yu CY, Campbell RD, Porter RR. A structural model for the location of the Rodgers and the Chido antigenic determinants and their correlation with the human complement component C4A/C4B isotypes. Immunogenetics 1988;27:399–405.10.1007/BF003644252453459Search in Google Scholar
Giles CM, Uring-Lambert B, Goetz J, et al. Antigenic determinants expressed by human C4 allotypes; a study of 325 families provides evidence for the structural antigenic model. Immunogenetics 1988;27:442–8.10.1007/BF003644312453461Search in Google Scholar
Carroll MC, Palsdotirr A, Belt KT, Porter RR. Deletion of complement C4 and 21-hydroxylase genes in the HLA class III region. EMBOJ 1985;4:2547–52.10.1002/j.1460-2075.1985.tb03969.x5545422996881Search in Google Scholar
Fielder AHL, Walport MJ, Batchelor JR, et al. Family study of the major histocompatibility complex in a patient with systemic lupus erythematosus: importance of null alleles of C4A and C4B in determining disease susceptibility. Br J Med 1983; 286:425–8.10.1136/bmj.286.6363.42515467686401549Search in Google Scholar
9- Reveille J, Arnett FC, Wilson RW, Bias WB, McLean RH. Null alleles of the fourth component of complement and HLA haplotypes in familiar systemic lupus erythematosus. Immunogenetics 1985;21:299–311.10.1007/BF004307963873410Search in Google Scholar
Dunckley H, Gatenby PA, Hawkins B, Naito S, Serjeantson SW. Deficiency of C4A is a genetic determinant of systemic lupus erythematosus in three ethnic groups. J Immunogenet 1987; 14:209–18.10.1111/j.1744-313X.1987.tb00383.xSearch in Google Scholar
Wilson WA, Perez MC, Armatis PE. Partial C4A deficiency is associated with susceptibility to systemic lupus erythematosus in black Americans. Arthritis Rheum 1988;31:1171–5.10.1002/art.1780310913Search in Google Scholar
Kemp ME, Atkinson JP, Skanes VM, Levine RP, Chaplin DD. Deletion of C4A genes in patients with systemic lupus erythematosus. Arthritis Rheum 1987;30:1015–22.10.1002/art.1780300908Search in Google Scholar
Goldstein R, Arnett FC, McLean RH, Bias WB, Duvic M. Molecular heterogeneity of complement component C4 “null” and 21-hydroxylase genes in systemic lupus erythematosus. Arthritis Rheum 1988;3L736–44.10.1002/art.1780310606Search in Google Scholar
Olsen ML, Goldstein R, Arnett FC, Duvic M, Pollack M, Reveille J. C4A gene deletion and HLA associations in black Americans with systemic lupus erythematosus. Immunogenetics 1989; 30:27–33.10.1007/BF02421466Search in Google Scholar
Bias WB, Hsu SH, Pollard MK, et al. HLA-DR characterization of a Chippewa Indian subpopulation with high prevalence of rheumatoid arthritis. Hum Immunol 1981;2:155–63.10.1016/0198-8859(81)90062-8Search in Google Scholar
Middleton J, Crookston MC. Chido substance in plasma. Vox Sang 1972;23:256–61.10.1111/j.1423-0410.1972.tb03459.xSearch in Google Scholar
Mauff G, Alper CA, Awdeh ZL, et al. Statement on the nomenclature of human C4 allotypes. Immunobiology 1983; 164:184–91.10.1016/S0171-2985(83)80009-6Search in Google Scholar
Sim E, Cross SJ. Phenotyping of human complement component C4, a class III HLA-antigen. Biochem J 1986;239:763–7.10.1042/bj239076311473523103606Search in Google Scholar
Budowle B, Roseman JM, Go RCP, Louv W, Barger BO, Acton RT. Phenotypes of the fourth complement component (C4) in black Americans from the southeastern United States. J Immunogenet 1983;10:199–204.10.1111/j.1744-313X.1983.tb00795.xSearch in Google Scholar
Howard PF, Hochberg MC, Bias WB, Arnett FC, McLean RH. Relationship beween C4 null genes, HLA-D region antigens, and genetic susceptibility to systemic lupus erythematosus in Caucasians and black Americans. Am J Med l986;8l:I87-93.Search in Google Scholar
James J, Stiles P, Boyce F, Wright J. The HLA type of Rg(a-) individuals. Vox Sang 1976;30:214–6.10.1111/j.1423-0410.1976.tb02817.x1251587Search in Google Scholar
