Application of mesenchymal stem cell-derived cardiomyocytes as bio-pacemakers: current status and problems to be solved. - Yuichi Tomita; Shinji Makino; Daihiko Hakuno; Naoichiro Hattan; Kensuke Kimura; Shunichiro Miyoshi; Mitsushige Murata; Masaki Ieda; Keiichi Fukuda (Medical Biol. Eng. Comput., 2007)