1. Delivery Room, People’s Hospital of Lujiang County, Lujiang County, Hefei 231500, Anhui Province, China
2. People’s Hospital of Lujiang County, Lujiang County, Hefei 231500, Anhui Province, China
3. Department of Infectious Diseases, People’s Hospital of Lujiang County, Lujiang County, Hefei 231500, Anhui Province, China