title: Complement C4 allotypes in congenital adrenal hyperplasia due to 21-hydroxylase deficiency: further evidence for different allelic variants at the 21-hydroxylase locus.
mesh_terms: D000312:Adrenal Hyperplasia, Congenital / Q000235:genetics* / Q000276:immunology; D000483:Alleles; D002874:Chromosome Mapping; D003181:Complement C4 / Q000235:genetics*; D015934:Complement C4a; D005787:Gene Frequency; D014644:Genetic Variation; D005838:Genotype; D006680:HLA Antigens / Q000235:genetics; D006238:Haploidy; D006801:Humans; D013255:Steroid 21-Hydroxylase / Q000235:genetics; D013250:Steroid Hydroxylases / Q000172:deficiency*
chemical_list: D003181:Complement C4; D006680:HLA Antigens; D015934:Complement C4a; D013250:Steroid Hydroxylases; D013255:Steroid 21-Hydroxylase