1 The Carl and Edyth Lindner Center for Research and Education, 2139 Auburn Avenue, Cincinnati, OH 45219, USA. Electronic address: Tim.Henry@thechristhospital.com.
2 Structural Heart Program, The Carl and Edyth Lindner Center for Research and Education at The Christ Hospital, 2139 Auburn Avenue, Cincinnati, OH 45219, USA. Electronic address: santiagogarcia@me.com.
3 Department of Public Health, "Federico II" University of Naples, Via Pansini, 5, 80131 Naples, Italy. Electronic address: eduardo.bossone@unina.it.