title: [Changes in humoral immunity in children with Helicobacter pylori gastritis].
authors.forename: N V
authors.initials: NV
authors.lastname: Levitskaia
mesh_terms: D000293:Adolescent; D000917:Antibody Formation; D002648:Child; D002675:Child, Preschool; D005756:Gastritis / Q000276:immunology* / Q000382:microbiology; D016481:Helicobacter Infections / Q000150:complications / Q000276:immunology*; D016480:Helicobacter pylori; D006801:Humans; D007070:Immunoglobulin A / Q000097:blood; D007074:Immunoglobulin G / Q000097:blood; D007075:Immunoglobulin M / Q000097:blood
chemical_list: D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007075:Immunoglobulin M