Multicenter registry and test bed for extended outpatient hemodynamic monitoring: the hemodynamic frontiers in heart failure (HF2) initiative oleh J. Thomas Heywood, Kartik Munshi, Timothy Jordan, Evan Muse, Marat Fudim, Andrew J. Sauer, Margaret McDermott, Hirak Shah, Arvind Bhimaraj, Rola Khedraki, Monique R. Robinson, Patrick McCann, Elizabeth Volz, Ashrith Guha, Orvar Jonsson, Kunjan A. Bhatt, Mosi K. Bennett, Terrie Ann Benjamin, Maya Guglin, Jacob Abraham