[1] Chongqing Med Univ, Affiliated Hosp 1, Dept Nursing, Chongqing 400016, Peoples R China
[2] Chongqing Med Univ, Childrens Hosp, Natl Clin Res Ctr Child Hlth & Disorders, Minist Educ,Dept Nursing,Key Lab Child Dev & Disor, Chongqing 400014, Peoples R China
[3] Chongqing Med Univ, Affiliated Hosp 1, Dept Gastrointestinal Surg, Chongqing 400016, Peoples R China
[4] Univ Sains Malaysia, Adv Med & Dent Inst, Dept Biomed Sci, George Town 13200, Malaysia
[5] Chongqing Med Univ, Affiliated Hosp 1, Acad Affairs Off, 1 Youyi Rd, Chongqing 400016, Peoples R China