The enigma of severe factor XI deficiency without hemmorrhagic symptoms. Distinction from Hageman factor and "Fletcher factor" deficiency; family study; and problems of diagnosis.
D000293:Adolescent; D001778:Blood Coagulation Disorders / Q000175:diagnosis*; D001780:Blood Coagulation Tests; D003937:Diagnosis, Differential; D005172:Factor XI; D005173:Factor XI Deficiency / Q000150:complications / Q000175:diagnosis / Q000235:genetics; D005174:Factor XII; D005260:Female; D006474:Hemorrhagic Disorders / Q000175:diagnosis / Q000209:etiology; D006801:Humans
D005174:Factor XII; D005172:Factor XI