A: The variant NC_000019.10:g.18868624_18868626del in gene GDF1 is classified as 'Pathogenic' for Right_atrial_isomerism. Molecular consequence: SO:0001624: 3_prime_UTR_variant,SO:0001822: inframe_deletion. Variant type: Deletion. Disease database links: Human_Phenotype_Ontology:HP:0011536,MONDO:MONDO:0008832,MedGen:C3178806,OMIM:208530,Orphanet:97548. Review status: no assertion criteria provided.