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Authors
Zhang, Jing
Sun, Xiaojin
Koro, Carol
Fang, Ying
Wu, Cheng
Zhou, Shaoming
Liao, Xueyan
Zheng, Minghuan
Yang, Weiwei
Wang, Sijie
Wang, Xuanyi
You, Xuedan
Hartwig, Susanne https://orcid.org/0009-0001-7337-6274
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Funding
Funding for this research was provided by:
Merck (Merck)
Merck (Merck)
Merck (Merck)
Merck (Merck)
Merck (Merck)
Merck (Merck)
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Article History
Received: 15 July 2025
Accepted: 16 December 2025
First Online: 8 January 2026
Declarations
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: This study was conducted in accordance with local and national regulations, accepted standards of Good Clinical and Pharmacoepidemiology Practice, and the ethical principles that have their origin in the Declaration of Helsinki regarding Independent Ethics Committee (IEC) review, and it was approved by the institutional review board of Beijing Children’s Hospital.
: Data were collected only from children whose parents provided informed consent to participate in the study.
: XS, CK, XL, MZ, XY, and SH are current or former employees of Merck Sharp & Dohme LLC, a subsidiary of Merck & Co., Inc., Rahway, NJ, USA, and may own stock and/or options in Merck & Co., Inc., Rahway, NJ, USA. JZ, YF, CW, SZ, WY, and SW have no conflicts to disclose.
