Cardiomyocytes can be generated from marrow stromal cells in vitro. - Makino,S.; Fukuda,K.; Miyoshi,S.; Konishi,F.; Kodama,H.; Pan,J.; Sano,M.; Takahashi,T.; Hori,S.; Abe,H.; Hata,J.; Umezawa,A.; et al. (J Clin Invest, 1999)