POOLED PHENOTYPING OF MYH7 VARIANTS IN GENE-EDITED STEM CELL-DERIVED CARDIOMYOCYTES ENABLES RECLASSIFICATION OF VARIANTS OF UNKNOWN SIGNIFICANCE - Clayton Friedman; Shawn Fayer; Charles Murry; Lea Starita; Douglas Fowler; Kai-Chun Yang (Journal of Molecular and Cellular Cardiology Plus)