Article History
Received: 28 July 2022
Accepted: 13 December 2022
First Online: 23 December 2022
Declarations
:
: The Ethics Review Board of Beijing Shijitan Hospital approved the investigation and ensured that the safety, health and rights of patients involved were protected.
: The authors give the consent for this study to be published in International Journal of Health Geographics.
: The authors declare no competing interests.
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