title: Variable expression of hemophilic gene in family.
mesh_terms: D002675:Child, Preschool; D005169:Factor VIII / Q000032:analysis; D005260:Female; D014644:Genetic Variation; D006467:Hemophilia A / Q000097:blood / Q000235:genetics*; D006579:Heterozygote; D006801:Humans; D007223:Infant; D008297:Male; D010375:Pedigree
chemical_list: D005169:Factor VIII