@incollection{Grille19, author = {Alba María Costa Grille and Irene Criado Martín and Roberto Petidier Torregrossa}, title = {Anticoagulation in AF and Elderly Frail Patient: How to Face New Challenges}, booktitle = {Epidemiology and Treatment of Atrial Fibrillation}, publisher = {IntechOpen}, address = {Rijeka}, year = {2019}, editor = {Gabriel Cismaru and Keith Andrew Chan}, chapter = {3}, doi = {10.5772/intechopen.88723}, url = {https://doi.org/10.5772/intechopen.88723} }