Overlap Arrhythmia Syndromes Resulting from Multiple Genetic Variations Studied in Human Induced Pluripotent Stem Cell-Derived Cardiomyocytes oleh Jacqueline A. Treat, Ryan Pfeiffer, Hector Barajas-Martinez, Robert J. Goodrow, Corina Bot, Rodolfo J. Haedo, Ronald Knox, Jonathan M. Cordeiro