| Affiliation: | 1. Department of Cardiovascular Diseases, Children''s Hospital affiliated to Capital Institute of Pediatrics, Beijing, China;2. Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada;3. Pediatric Rehabilitation Outcomes Evaluation and Research Unit, Glenrose Rehabilitation Hospital, Edmonton, Alberta, Canada;4. School of Public Health, University of Alberta, Edmonton, Alberta, Canada;5. Clinical Physiology Research Center, Capital Institute of Pediatrics, Beijing, China |
