Funding for this research was provided by:
Medical and Health Science and Technology Program in Zhejiang (2018KY695)
Ningbo Health Branding Subject Fund (PPXKk2018-01)
Article History
Received: 8 May 2020
Accepted: 10 July 2020
First Online: 6 August 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: For this type of study formal consent is not required.