GJA5 and isolated hemihyperplasia: We quantified this overlap in multiple samples as we have done previously [28], and found no differences in the Mander’s coefficients that quantify the overlap of Cx40 on Cx43 (0.66 for RA vs. 0.68 for IH) or of Cx43 on Cx40 (0.86 for RA vs. 0.76 for IH).