Altena, R., van Roon, E., Folkeringa, R., de Wit, H. and Hoogendoorn, M. (2014) “Clinical challenges related to novel oral anticoagulants: drug-drug interactions and monitoring”, Haematologica. Pavia, Italy, 99(2), pp. e26-e27. doi: 10.3324/haematol.2013.097287.