References
  1. Takahashi K, Minakawa M, Kondo N, Oikawa S, Hatakeyama M. Coronary artery bypass surgery by the transdiaphragmatic approach. Ann Thorac Surg 2002;74:700-703.
  2. Norihiro K, Kenji T, Masahito M, Shigeru O, Masaharu H. Coronary artery bypass via diaphragmatic approach with free graft. Ann Thorac Surg 2002;74:939-940.