Fig6_E9.5_Myhca. Copyright: This image is from [doi:10.1002/dvdy.20136] [PMID:12761855] Porter GA, Makuck RF, Rivkees SA, "Intracellular calcium plays an essential role in cardiac development" Dev Dyn 2004 227(2): 280-290, and is displayed with the permission of Wiley-Liss Inc. who owns the Copyright.