Humans 12 article 12 heterozygote detection 12 human 12 Argentina 10 exon 10 frameshift mutation 8 gene deletion 8 genetics 8 nucleotide sequence 8 promoter region 8 Adolescent 6 Male 6 Polymerase Chain Reaction 6 adolescent 6 chemical analysis 6 controlled study 6 female 6 genetic analysis 6 heterozygosity 6 male 6 molecular biology 6 mutation 6 point mutation 6 unclassified drug 6 Adrenal Hyperplasia, Congenital 4 Adult 4 Algorithms 4 CYP21A2 protein, human 4 Case-Control Studies 4