Published on in Vol 9, No 10 (2021): October
1 Department of Nursing, The Seventh Affiliated Hospital, Southern Medical University, Foshan, China
2 Department of Obstetrics and Gynecology, The Seventh Affiliated Hospital, Southern Medical University, Foshan, China
3 Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
4 Department of Nursing, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
5 Department of Obstetrics & Gynecology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
6 School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
*these authors contributed equally