Generation of functional cardiomyocytes from rat embryonic and induced pluripotent stem cells using feeder-free expansion and differentiation in suspension culture. oleh Julia Dahlmann, George Awad, Carsten Dolny, Sönke Weinert, Karin Richter, Klaus-Dieter Fischer, Thomas Munsch, Volkmar Leßmann, Marianne Volleth, Martin Zenker, Yaoyao Chen, Claudia Merkl, Angelika Schnieke, Hassina Baraki, Ingo Kutschka, George Kensah