Pieter Martens1, Peter Sinnaeve2. 1. Department of Internal Medicine (Martens); Department of Cardiology and Cardiovascular Medicine (Sinnaeve), University Hospitals Leuven, Gasthuisberg, Leuven, Belgium Pieter.1.martens@uzleuven.be. 2. Department of Internal Medicine (Martens); Department of Cardiology and Cardiovascular Medicine (Sinnaeve), University Hospitals Leuven, Gasthuisberg, Leuven, Belgium.