[1] Shantou Univ, Dept Hepatobiliary Surg, Affiliated Hosp 1, Coll Med, Shantou 515041, Peoples R China
[2] Shantou Univ, Dept Orthoped, Affiliated Hosp 1, Coll Med, Shantou 515041, Peoples R China
[3] Shantou Univ, Dept Emergency Surg, Affiliated Hosp 1, Coll Med, 57 Changping Rd, Shantou 515041, Guangdong, Peoples R China