title: Factor IX deficiency and frugal method of analysis.
authors.forename: A T
authors.initials: AT
authors.lastname: Bundy
mesh_terms: D001780:Blood Coagulation Tests; D003365:Costs and Cost Analysis; D006403:Hematologic Tests; D002836:Hemophilia B / Q000175:diagnosis* / Q000191:economics; D006801:Humans; D007223:Infant; D008297:Male; D010808:Physical Examination