title: Allelic variation in Helicobacter pylori: progress but no panacea.
authors.affiliation: Division of Infectious Diseases Vanderbilt University School of Medicine and Department of Veterans Affairs Medical Centre A-3310 Medical Centre North Nashville, TN 37232-2605, USA email: martin. blaser@mcmail.vanderbilt.edu.
authors.forename: M J
authors.initials: MJ
authors.lastname: Blaser
mesh_terms: D000483:Alleles; D016480:Helicobacter pylori / Q000235:genetics* / Q000472:pathogenicity; D006801:Humans; D010437:Peptic Ulcer / Q000382:microbiology; D013045:Species Specificity; D013274:Stomach Neoplasms / Q000382:microbiology