hemophilia factor XI deficiency https://github.com/monarch-initiative/mondo/issues/5537 UMLS:C4321502 MONDO:0020587 NANDO:2200679 factor XI deficiency A coagulation disorder characterized by the partial or complete absence of factor XI activity in the blood. MEDGEN:1386956 NCIT:C131739 SCTID:767713001 MESH:D005173 GARD:0025180