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Authors
Ngan, Tran Thu
Ngoc, Nguyen Bao
Van Minh, Hoang
Donnelly, Michael
O’Neill, Ciaran
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Article History
Received: 18 January 2021
Accepted: 20 December 2021
First Online: 10 January 2022
Declarations
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: The study was carried out in accordance with the Declaration of Helsinki. It was approved by the Ethics Committee of Hanoi University of Public Health (No. 265/2019/YTCC-HD3 dated 25th April 2019) and by each participating hospital. Informed consent was obtained from all individual participants included in the study. Participants were assured of the confidential nature of the information gathered. All data collected were anonymized using unique study identifiers.
: Not applicable.
: The authors declare that they have no competing interests.
