Department of Microbiology;
Harbin Medical University;
Harbin 150081;
Heilongjiang Province;
China;
Department of Histology and Embryology;
Jiamusi Medical College;
Jiamusi University;
Jiamusi 154002;
Heilongjiang Province;
China;
Department of Anesthesiology;
Second Affiliated Hospital;
Jiamusi University;
Jiamusi 154002;
Heilongjiang Province;
China;