Received: 26 August 2020
Accepted: 30 November 2020
First Online: 22 December 2020
Compliance with Ethical Standards
: The authors declare that they have no conflict of interest.
: This study was approved by the Institutional Ethics Board of Women and Children's Hospital of Hubei Province (No. 2020IECLW019). In view of the urgency to contain this outbreak, a written informed consent was exempted. Instead, an oral consent was obtained from the patient’s family.
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