HemochromatosisHistocompatibility Antigens Class IGene FrequencyIron OverloadPhlebotomyIronTransferrinPorphyria Cutanea TardaMembrane ProteinsHLA AntigensReceptors, TransferrinFerritinsHepcidinsMutationHeterozygoteGenotypeAntimicrobial Cationic PeptidesHomozygotePoint MutationMutation, MissenseIron Metabolism DisordersAllelesCation Transport ProteinsGenetic TestingPhenotypeIron RadioisotopesPedigreePolymorphism, GeneticLiverIron-Binding ProteinsPolymerase Chain ReactionPenetranceIron Chelating AgentsSelection, GeneticModels, GeneticDuodenumChromosomes, Human, Pair 6Genetics, Populationbeta 2-MicroglobulinHeterozygote DetectionIndians, South AmericanAmino Acid SubstitutionMolecular Sequence DataDNA Mutational AnalysisGenes, RecessiveGenetic VariationFrameshift Mutation