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Examples of prenatal genetic testing. (A) Pedigree of family I. (B) Pedigree of family V. Black symbols represent affected individuals with biallelic pathogenic IL10RA variants, grey symbols represent a child with infantile IBD where no genotype is available. Dots represent individuals with heterozygous pathogenic variants. CVS = chorionic villus sampling, UCBT = umbilical cord blood transplantation.
