title: National haemophilia B molecular genetic register.
authors.forename: R
authors.initials: R
authors.lastname: Harris
mesh_terms: D016208:Databases, Factual; D004739:England; D005164:Factor IX / Q000235:genetics; D005826:Genetics, Medical; D002836:Hemophilia B / Q000235:genetics; D006801:Humans; D009154:Mutation; D012042:Registries
chemical_list: D005164:Factor IX