[1] Zhengzhou Univ, Sch Nursing & Hlth, Zhengzhou, Henan, Peoples R China
[2] Peking Union Med Coll Hosp, Dept Nursing, Beijing, Peoples R China
[3] Zhengzhou Univ, Affiliated Hosp 1, Dept Vasc Surg, Zhengzhou, Henan, Peoples R China
[4] Capital Med Univ, Beijing Anzhen Hosp, Dept Cardiac Surg, Beijing, Peoples R China
[5] Zhengzhou Univ, Affiliated Hosp 1, Dept Nursing, Zhengzhou, Henan, Peoples R China