Human genes for X-linked thrombophilia due to factor IX defect
X-linked thrombophilia due to factor IX defect [DOID:0111899]
A thrombophilia characterized by normal levels of F9 antigen, but very high levels of F9 activity that has_material_basis_in hemizygous gain of function mutation in F9 on chromosome Xq27.1.
Synonyms: X-linked thrombophilia due to factor IX defect, DOID:0111899, Xlinked thrombophilia due to factor IX defect, X-linked thrombophilia due to factor IX defects, THPH8