[1] SunYat Sen Univ, Affiliated Hosp 3, Dept Cardiac Care Unit, Guangzhou, Peoples R China
[2] SunYat Sen Univ, Lingnan Hosp, Affiliated Hosp 3, Dept Neurol Med, Guangzhou, Peoples R China
[3] SunYat Sen Univ, Affiliated Hosp 3, Dept Nursing, Guangzhou, Peoples R China