Hemophilia B in a phenotypically normal girl with XX (ring) XO mosaicism.
D001780:Blood Coagulation Tests; D002675:Child, Preschool; D002869:Chromosome Aberrations; D002906:Chromosomes, Human, 6-12 and X; D005164:Factor IX / Q000032:analysis; D005260:Female; D005808:Genes, Recessive; D002836:Hemophilia B / Q000235:genetics*; D006801:Humans; D007621:Karyotyping; D009030:Mosaicism; D010641:Phenotype; D012730:Sex Chromosomes; D014424:Turner Syndrome / Q000097:blood
D005164:Factor IX