Left atrial to coronary sinus shunting for treatment of heart failure with mildly reduced or preserved ejection fraction: The ALT FLOW Early Feasibility Study 1‐year results. - Urey, Marcus A.; Hibbert, Benjamin; Jorde, Ulrich; Eckman, Peter; Simard, Trevor; Labinaz, Marino; Nazer, Babak; Wiley, Mark; Gupta, Bhanu; Sauer, Andrew; Shah, Hirak; Sorajja, Paul; et al. (European Journal of Heart Failure, 2024)