MYH7 and hypertrophic cardiomyopathy: We utilized an established control hiPSC line (Stanford University Cardiovascular Institutes Biobank, Stanford, California, USA; Hypertrophic Cardiomyopathy/MYH7/Control iPSC line) and a monolayer-based, biphasic modulation of Wnt signaling protocol (GiWi protocol) (4, 42) to generate hiPSC-CMs and hiPSC-ECTs for our study (Figure 1A and Supplemental Data WiCell Report; supplemental material available online with this article; https://doi.org/10.1172/jci.insight.172168DS1).