title: Nodular gastritis associated with Helicobacter helmannii infection.
mesh_terms: D000293:Adolescent; D002675:Child, Preschool; D005260:Female; D005756:Gastritis / Q000382:microbiology*; D016998:Helicobacter / Q000302:isolation & purification; D016481:Helicobacter Infections / Q000382:microbiology*; D006801:Humans; D008297:Male