Affiliation: | 1.Department of Clinical Laborotary Science, Guiyang Medical College, Guiyang, Guizhou 550004, China;2.Guangdong Povince Center of Disease Control Virology Section, Guangzhou, Guangdong 510033, China;3.Department of Experimental Surgery, Tangdu Hospital, The Forth Military Medical University, Xi''an, Shannxi, 710038, China |