[1] First Hosp China Med Univ, Dept Ophthalmol, Shenyang 110001, Peoples R China
[2] Liaoning Univ Tradit Chinese Med, Dept Clin Integrat Tradit Chinese & Western Med, Shenyang, Peoples R China
[3] China Med Univ, Canc Hosp, Liaoning Canc Hosp & Inst, Dept Gen Surg, Shenyang, Peoples R China
[4] First Hosp China Med Univ, Dept Gen Surg, Shenyang 110001, Peoples R China