Published on in Vol 19, No 7 (2017): July
1 Community Nursing Section, School of Nursing, Tianjin Medical University, Tianjin, China
2 Internet Section, Information Center, Tianjin Medical University, Tianjin, China
3 Health Service Management, School of Public Health, Tianjin Medical University, Tianjin, China
4 Respiratory Unit, Department of Respiratory Care, Tianjin First Center Hospital, Tianjin, China
5 Respiratory Unit, Department of Respiratory Care, General Hospital of Tianjin Medical University, Tianjin, China