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Patient population.
Notes: aAnticoagulants included warfarin, heparin, Lovenox, Fragmin, Eliquis, Pradaxa, and Xarelto. bNormal PT, <16 seconds; prolonged aPTT, >50 seconds.
Abbreviations: aPTT, activated partial thromboplastin time; ICD-9-CM, International Classification of Diseases, Ninth Revision, clinical modification; PT, prothrombin time.
