Ishikawa F, Shimazu H, Shultz LD, Fukata M, Nakamura R, Lyons B, Shimoda K, Shimoda S, Kanemaru T, Nakamura K, Ito H, Kaji Y, Perry AC, Harada M. Purified human hematopoietic stem cells contribute to the generation of cardiomyocytes through cell fusion. FASEB J. 2006 May; 20(7):950-2.