Myosin-based contraction is not necessary for cardiac c-looping in the chick embryo.

Remond M.C., Fee J.A., Elson E.L., & Taber L.A. (2006). “Myosin-based contraction is not necessary for cardiac c-looping in the chick embryo.” Anat Embryol (Berl). 2006 Oct;211(5):443-54. Epub 2006 Apr 25. (Abstract)