Hypertrophic Cardiomyopathy And Heart Failure With Preserved Ejection Fraction: A Common Phenotype Explaining Exercise Intolerance: 928 Board #54 May 27 2:30 PM ‐ 4:00 PM. (July 2020) - Dias, Katrin A.; MacNamara, James P.; Hieda, Michinari; Hearon, Christopher M.; Howden, Erin J.; Turer, Aslan T.; Link, Mark S.; Sarma, Satyam; Levine, Benjamin D.