title: PTA (factor XI) deficiency and prolonged bleeding time.
mesh_terms: D000244:Adenosine Diphosphate / Q000097:blood; D000328:Adult; D001772:Blood Cell Count; D001777:Blood Coagulation; D001779:Blood Coagulation Factors / Q000378:metabolism*; D001780:Blood Coagulation Tests; D001792:Blood Platelets / Q000032:analysis / Q000378:metabolism / Q000503:physiopathology*; D001803:Blood Transfusion; D005172:Factor XI / Q000032:analysis / Q000378:metabolism; D005173:Factor XI Deficiency / Q000097:blood / Q000235:genetics / Q000503:physiopathology; D005260:Female; D006474:Hemorrhagic Disorders / Q000503:physiopathology*; D006801:Humans; D008297:Male; D010973:Platelet Adhesiveness; D013997:Time Factors
chemical_list: D001779:Blood Coagulation Factors; D000244:Adenosine Diphosphate; D005172:Factor XI