TY - JOUR T1 - Comorbidity Differentiation and Risk Stratification in the Elderly Patient with Polypharmacy: A Prospective Primary Care Registry on Oral Anticoagulation Therapy AU - Vugt, S van AU - Aarts, G AU - Lamfers, E AU - Vries, L Bloem-de AU - Kramers, C AU - Boer, MJ de AU - Verheugt, Freek WA AU - Focks, J Jaspers AU - Brouwer, M DO - 10.15420/ecr.2020.15.1.PO23 UR - https://doi.org/10.15420/ecr.2020.15.1.PO23 JO - European Cardiology Review 2020;15:e46. Y1 - 2020 PB - Radcliffe Cardiology ER -