alpha 1-Antitrypsin Deficiencyalpha 1-AntitrypsinPulmonary EmphysemaEmphysemaPhenotypeLiver DiseasesMutationPulmonary Disease, Chronic ObstructiveHeterozygotePedigreeTrypsin Inhibitorsalpha 1-AntichymotrypsinHomozygoteForced Expiratory VolumeLung DiseasesPancreatic ElastaseAllelesGenetic Diseases, InbornGenotypeMetabolism, Inborn ErrorsLiverProtoporphyria, ErythropoieticProteostasis DeficienciesGenetic TestingBronchiectasisHepatitisLiver CirrhosisBase SequenceSmokingSerpinsLungInfant, Newborn