Fig 1. [doi:10.1002/dvdy.10212] Copyright: This image is from Zhao Z; Rivkees SA, "Rho-associated kinases play an essential role in cardiac morphogenesis and cardiomyocyte proliferation." Dev Dyn 2003 226: 24-32. Reprinted with permission of Wiley-Liss Inc. [PMID:12508221] .