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(Stem Cell Reports 10, 1267–1281; April 10, 2018)
As a result of author oversight, there were mistakes in two sections of the originally published version of this article. In the figure legend for Figure 6E, the colors representing “control,” “patient,” and “corrected” were listed incorrectly; they should have been listed as green, blue, and orange, respectively. The labels in Figure 6E itself are correct. In addition, in the legend for Figure 6E, the concentration of HCN blocker ZD7288 was listed as 40 M; it should be 40 μM. In the Experimental Procedures section “Electrophysiology,” the concentrations of ATP-Mg and GTP-Na were not accurately listed; they should be 5 mM and 0.5 mM, respectively. The authors sincerely apologize for the careless mistakes that were made and any inconvenience it may have caused. These errors do not affect the content and conclusions presented in this article and have been corrected in the online version.