title: [Use of ELISA in detecting antibodies against L. pneumophila serogroup 1 in 195 healthy persons in Tianjin].
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000907:Antibodies, Bacterial / Q000032:analysis* / Q000276:immunology; D002648:Child; D002675:Child, Preschool; D002681:China; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006801:Humans; D007223:Infant; D007875:Legionella / Q000276:immunology*; D008297:Male; D008875:Middle Aged
chemical_list: D000907:Antibodies, Bacterial