【正】Objective:To evaluate the protective effect of DNA vaccine with the gene encoding 55kDa antigen fragment of Pneumocystis carinii(P.carina) against P.carin
【正】Objective:To determine the profdes of anti-Entamoeba histolytica(E.histolytica) IgA.IgC. and IgM in sera of diarrheic and non-diarrheic individuals and pa
【正】Hainan is an island province in south China with a high frequency of unconventional emergencies due to its special geographic location and national milita