A: The variant NC_000019.10:g.18869108C>T in gene GDF1 is classified as 'Pathogenic/Likely_pathogenic' for Heterotaxy|not_provided|Inborn_genetic_diseases|Right_atrial_isomerism. Molecular consequence: SO:0001587: nonsense,SO:0001624: 3_prime_UTR_variant. Variant type: single_nucleotide_variant. Disease database links: Human_Phenotype_Ontology:HP:0030853,MedGen:C0266642,Orphanet:157769|MedGen:C3661900|MeSH:D030342,MedGen:C0950123|Human_Phenotype_Ontology:HP:0011536,MONDO:MONDO:0008832,MedGen:C3178806,OMIM:208530,Orphanet:97548. Review status: criteria provided, multiple submitters, no conflicts.