Li, Wu
Yu, Zhao
Jing, Yang
Funding for this research was provided by:
The Science and Technology Fund Project of Guizhou Provincial Health Commission in 2019
Article History
Received: 29 January 2022
Accepted: 17 October 2022
First Online: 8 November 2022
Declarations
:
: KMC technology has been approved by the Ethics Committee of Maternal And Child Health Hospital Of Liping County, Guizhou Province. All methods were carried out in accordance with relevant guidelines and regulations in the declaration—Ethics approval and consent to participate section.
: All the authors agreed to the manuscript's publication.
: The authors declare that they have no conflicts of interest and nothing to disclose.