Suzuki, Takaaki
Phonesavanh, Oulaivanh
Thongsna, Snong
Inoue, Yoshiaki
Ichikawa, Masao
Funding for this research was provided by:
The Foundation for Advanced Studies on International Development Scholarship Program, Japan
Article History
Accepted: 22 December 2021
First Online: 18 January 2022
Declarations
:
: The authors declare that they have no conflicts of interest.
: Informed consent for participation could not be obtained from all individual participants owing to the retrospective nature of the present study. Instead, the study protocol and supporting contents are published on the webpage of the University of Tsukuba Hospital. The opportunity and rights of patients to opt out of the study were guaranteed.
: The study protocol was approved by the Institutional Review Board of the University of Tsukuba Hospital, and the study was conducted in accordance with the Declaration of Helsinki.