This study was supported by Hunan Province Clinical Medical Technology Innovation Guidance Project (2018SK52202), General Guidance Project of Hunan Provincial Health Commission (20201949), Project of Hunan Provincial Health Commission (B2019111), Hunan Provincial Natural Science Foundation Project (2020JJ5504), Hengyang Science and Technology Bureau Guidance Project (2020161), and Scientific Research Project of Hunan Education Department (19C1620).