Article Information
vol. 69 no. 7 1339-1343
PubMed
Print ISSN
Online ISSN
History
- Accepted May 18, 2021
- Published online September 27, 2021.
Article Versions
- Previous version (June 3, 2021 - 08:05).
- You are viewing the most recent version of this article.
Copyright & Usage
© American Federation for Medical Research 2021. No commercial re-use. See rights and permissions. Published by BMJ.
Author Information
- 1 Department of Respiratory Disease, Children’s Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders. Chongqing Key Laboratory of Pediatrics, Chongqing, China
- 2 School of Public Health and Management, Chongqing Medical University, Chongqing, China
- Correspondence to Professor Jihong Dai, Department of Respiratory Disease, Chongqing Medical University Affiliated Children's Hospital, Chongqing 400014, China; 328776694{at}qq.com