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Authors
Cheng, Hoi K. https://orcid.org/0009-0000-0409-5930
Lai, Angel https://orcid.org/0000-0001-5262-661X
Kwok, Maxwell https://orcid.org/0000-0001-5920-9341
Yan, Bryan P. https://orcid.org/0000-0003-0430-5752
Poon, Ellen Ngar-Yun https://orcid.org/0000-0002-9280-3681
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Funding
Funding for this research was provided by:
Health and Medical Research Fund (22210062)
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Article History
Received: 23 July 2025
Accepted: 18 August 2025
First Online: 11 September 2025
Declarations
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: Hoi Ki Cheng is an employee of Pfizer Inc, but the latter did not play any role in the design and execution of this study. All other authors (Angel Lai, Maxwell Kwok, Bryan P Yan, Ellen N Poon) have no conflicts of interest relevant to the content of this manuscript.
: This article is based on available data in VigiBase (), and the data is anonymous and is available upon request from said database. This manuscript does not contain any new studies with human participants or animals performed by any of the authors. The study was approved by the ethics committee of The Chinese University of Hong Kong (CUHK) and New Territories East Cluster (NTEC) (Ref. No. 2023.186). Since only anonymous data was collected, informed consent was waived.
