SEARCH Articles Figures Tables Activated partial thromboplastin Activated partial thromboplastin aPTT) Activated partial thromboplastin time Activated partial thromboplastin time APTT) Activated partial thromboplastin time prolongation Activated partial thromboplastin time test Blood Thromboplastin Blood activated partial thromboplastin time Blood coagulation, Thromboplastin Brain thromboplastin Factor XI (plasma thromboplastin Factor thromboplastin Heparin activated partial thromboplastin time Heparin activity, activated partial thromboplastin Heparin thromboplastin time Partial thromboplastin time Plasma thromboplastin Plasma thromboplastin antecedent Plasma thromboplastin component Plasma thromboplastin component deficiency Platelets Thromboplastin Prolonged partial thromboplastin Prolonged partial thromboplastin times Thromboplastin and Thromboplastin antecedent Thromboplastin components Thromboplastin inhibition Thromboplastin time Thromboplastin time assay Thromboplastin time, activated Tissue thromboplastin