title: [Progress of experimental study on infantile recurrent respiratory infection].
authors.forename: S C
authors.initials: SC
authors.lastname: Zhu
mesh_terms: D000243:Adenosine Deaminase / Q000097:blood; D016516:CD4-CD8 Ratio; D002648:Child; D006801:Humans; D012008:Recurrence; D012141:Respiratory Tract Infections / Q000097:blood / Q000276:immunology*; D016176:T-Lymphocyte Subsets / Q000276:immunology; D014131:Trace Elements / Q000097:blood
chemical_list: D014131:Trace Elements; D000243:Adenosine Deaminase