[1] Wuhan Univ, Sch Nursing, 115 Donghu Rd, Wuhan 430071, Hubei, Peoples R China
[2] Wuhan Univ, Hosp Stomatol, 237 Luoyu Rd, Wuhan 430079, Hubei, Peoples R China
[3] UT Southwestern Med Ctr, Nursing Res Dept, Magnet Program, 8200 Brookriver Dr, Dallas, TX 75247 USA