title: Plasma thromboplastin antecedent deficiency and subarachnoid hemorrhage.
mesh_terms: D003937:Diagnosis, Differential; D005173:Factor XI Deficiency / Q000150:complications* / Q000175:diagnosis; D006801:Humans; D002532:Intracranial Aneurysm / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D013345:Subarachnoid Hemorrhage / Q000209:etiology*