1. Alice Lee Centre for Nursing Studies, Yong Loo Lin School of Medicine, National University of Singapore , Singapore , Singapore
2. Division of Nursing, National University Hospital , Singapore
3. National University Health System , Singapore
4. Saw Swee Hock School of Public Health, National University of Singapore , Singapore
5. Department of Musculoskeletal Pain Rehabilitation, The Fifth Affiliated Hospital of Zhengzhou University , Zhengzhou , China
6. Research Unit of Nursing Science and Health Management, University of Oulu , Oulu , Finland
7. Department of Children and Women, Oulu University Hospital , Oulu , Finland
8. Department of Paediatric Surgery, National University Hospital , Singapore