[1] Zhejiang Univ, Affiliated Hosp 1, Sch Med, Dept Nursing, Hangzhou, Peoples R China
[2] Zhejiang Univ, Dept Resp Med, Affiliated Hosp 1, Sch Med, Hangzhou, Peoples R China
[3] Zhejiang Univ, Dept Surg Oncol, Affiliated Hosp 1, Sch Med, Hangzhou, Peoples R China
[4] Zhejiang Univ, Dept Ear Nose Throat, Affiliated Hosp 1, Sch Med, Hangzhou, Peoples R China