Overview Influenza Vaccination and Oral Anticoagulant Therapy Status: Completed Trial end date: 2005-05-01 Target enrollment: Participant gender: Summary The purpose of this study is to evaluate INR and INR related index and Warfarin weekly dosage variations after Influenza Vaccination Phase: Phase 4 Details Lead Sponsor: University Of PerugiaTreatments: AnticoagulantsVaccines