Figure 1B. Copyright: Reprinted with permission from Elsevier from [doi:10.1016/S1567-133X(03)00124-8] Gene Expr Patterns 3: 767-76, Polvani S; Masi A; Pillozzi S; Gragnani L; Crociani O; Olivotto M; Becchetti A; Wanke E; Arcangeli A, Developmentally regulated expression of the mouse homologues of the potassium channel encoding genes m-erg1, m-erg2 and m-erg3. Copyright 2003.