[1] Sichuan Univ, Dept Cardiovasc Surg, West China Hosp, Chengdu, Peoples R China
[2] Sichuan Univ, Dept Pediat Otolaryngol Head & Neck Surg, Chengdu, Peoples R China
[3] Sichuan Univ, West China Univ Hosp 2, Childrens Heart Ctr, Dept Pediat Cardiovasc Surg, 20 3rd Sect,Renmin S Rd, Chengdu 610041, Sichuan, Peoples R China