Optimal cardioplegia solution during cardiopulmonary bypass: Crystal or blood, single or repeated dose

Department of Cardiopulmonary Bypass, Chinese Acad Med Science, Peking Union Medical College, Fuwai Hosp & Cardiovasc Inst, Beijing100037, Peoples Republic of China.

*Department of Cardiopulmonary bypass, Chinese Acad Med, Sci, Peking Union Med Coll, Fuwai Hosp & Cardiovasc Inst, Beijing 100037, Peoples R China 167 Beilishi Road, Fuwai Dajie, Xicheng qu Beijing, China, Post code: 100037, E-mail: dr.ji.cpb @gmail.com.