A congenital inhibitor against factor IX.
D000293:Adolescent; D000925:Anticoagulants; D001769:Blood; D002648:Child; D003937:Diagnosis, Differential; D005164:Factor IX; D006467:Hemophilia A; D002836:Hemophilia B; D006474:Hemorrhagic Disorders / Q000151:congenital*; D006801:Humans; D008297:Male
D000925:Anticoagulants; D005164:Factor IX