title: Factor IX deficiency (hemophilia B) in a litter of Labrador retrievers.
mesh_terms: D000818:Animals; D001803:Blood Transfusion / Q000662:veterinary; D003131:Combined Modality Therapy / Q000662:veterinary; D004283:Dog Diseases / Q000175:diagnosis* / Q000235:genetics / Q000628:therapy; D004285:Dogs; D002836:Hemophilia B / Q000175:diagnosis / Q000628:therapy / Q000662:veterinary*; D006579:Heterozygote; D008297:Male; D010837:Vitamin K 1 / Q000627:therapeutic use
chemical_list: D010837:Vitamin K 1