Inspection Department of Chongzuo Maternal and Child Health Care Hospital;
Chongzuo;
China;
Inspection Department of Nanning Third People’s Hospital;
Nanning;
China;
Inspection Department of Nandan Hospital of Traditional Chinese Medicine;
Nandan;
China;
Department of Infectious Diseases of Debao County People’s Hospital;
Debao;
China;
Children; Respiratory Infections; Pathogens; Laboratory Testing; Acute;