[1] Mu Dan Jiang Med Univ, Orthoped Dept, Affiliated Hong Qi Hosp, Mudanjiang City, Peoples R China
[2] Mu Dan Jiang Med Univ, Anesthesiol Dept, Affiliated Hong Qi Hosp, Mudanjiang City, Peoples R China
[3] Mu Dan Jiang Med Univ, ICU Dept, Affiliated HongQi Hosp, Mudanjiang City, Peoples R China