I. Microbiology.- Helicobacter pylori Detection by Polymerase Chain Reaction of the Gene Encoding 16S Ribosomal RNA in Fresh and Paraffin-Embedded Material.- Polymerase Chain Reaction for Helicobacter pylori.- Helicobacter pylori Strains from Duodenal Ulcer Patients Differ at the Genomic Level from Those Patients with Simple Gastritis.- Perspectives on the Microbiology of Helicobacter pylori.- II Epidemiology.- A Descriptive Study of the Characteristics of People with Helicobacter pylori Infection.- High Prevalence of Helicobacter pylori-Induced Gastritis in China: Results of a Screening Study in 194 Adolescents.- Seroepidemiology of Helicobacter pylori Infection in Vegans and Meat Eaters.- Seroepidemiology of Helicobacter pylori Infection in the Armed Forces.- Helicobacter pylori Infection Clusters in Families of Healthy Individuals.- Reinfection with Helicobacter pylori Due to Intrafamilial Clustering of the Organism.- Epidemiology: Summary of Workshop and Future Prospects.- III. Pathophysiology.- Superficial Components from Helicobacter pylori That Are Adherent to Epithelial Cells.- Bismuth Bioavailability from 205Bi-Labelled Bismuth Compounds Used in Suppression of Helicobacter pylori and Treatment of Peptic Ulcer.- Optical and Electronic Findings in Helicobacter pylori Infection of Antral Mucosa.- Bacteria and Gastrin Release.- Helicobacter pylori, Gastritis, Duodenal Ulcer, and Gastric Histamine Content.- Detection of Phospholipases and Cytotoxic Activities of Helicobacter pylori.- IV. Pathology.- Antral Follicular Gastritis Is Characteristic of Helicobacter pylori Infection.- Defining the Role of Helicobacter pylori in Relationship to Relapse of Duodenal Ulcer.- Gastritis and Helicobacter pylori Prevalence in Patients with Heterotopic Gastric Mucosa or Gastric Metaplasia in the Duodenum.- Evolution of Gastritis After Helicobacter pylori Eradication.- Histological Improvements in Gastritis After Eradication of Helicobacter pylori Infection.- Helicobacter pylori in Subtotal Gastrectomies.- Helicobacter pylori and Duodenal Ulcer.- Helicobacter pylori and the Oesophagus.- Gastritis: A Short Appraisal of Classification and the Sydney System.- V. Immunology.- Stress Proteins and Local Immune Response in Helicobacter pylori-Associated Chronic Gastritis.- Local and Systemic Antibody Responses During Helicobacter pylori Infections.- Local Immunoglobulin A Subclass Alteration in the Gastric Mucosa of Helicobacter pylori-Infected Patients.- Antibodies Against Helicobacter pylori as an Indicator of Antrum Gastritis.- Antibodies to Vacuolating Toxin of Helicobacter pylori in Dyspeptic Patients.- Cytokines and Mucosal Immune Responses to Helicobacter pylori.- Immunological Aspects of Helicobacter pylori Infection.- VI. Diagnostic Progress.- Usefulness of Two Enzyme-Linked Immunosorbent Assay Systems for the Diagnosis of Helicobacter pylori-Associated Gastritis.- VII Helicobacter pylori and Non-ulcer Dyspepsia.- Helicobacter pylori Infection in Gastroesophageal Reflux Disease.- Computerised History Taking for the Assessment of Helicobacter pylori in Non-ulcer Dyspepsia: The Quest for the Clinical Syndrome.- VIII. Helicobacter pylori and Malignant Growth.- Prevalence of Helicobacter pylori in Patients with Malignant Growth of Gastric Mucosa.- A Role for Helicobacter pylori in Gastric Carcinoma?.- Increased Incidence of Helicobacter pylori in Gastric Cancer, as Shown by the Rapid Urease Test.- Evaluation of the Presence and Amount of Helicobacter pylori in Early Gastric Cancer.- Helicobacter pylori prevalence in Patients with Severe Dysplasia of Gastric Epithelium and Associated Pathology.- Gastric Cancer and Helicobacter pylori.- Role of Helicobacter pylori in Gastric Carcinogenesis: Future Prospects.- IX. Helicobacter pylori in Children.- Epidemiology of Helicobacter pylori Infection in Pediatrics: A Serologic Study.- Prevalence of Antibody of Helicobacter pylori in Children in Northern Nigeria.- Prevalence of Immunoglobulin G Antibodies to Helicobacter pylori in Mothers of Newborns with Upper Gastrointestinal Bleeding.- Helicobacter pylori Infection in Children.- Histological and Serological Examination of Helicobacter pylori in Estonian Children with Abdominal Complaints.- Helicobacter pylori in Children with Recurrent Abdominal Pain and Other Conditions.- Helicobacter pylori-Associated Gastritis in Children.- Helicobacter pylori Gastritis in Children: Wide Spectrum of Symptoms.- Childhood Peptic Ulcer Can Be Cured by Eradicating Helicobacter pylori.- Helicobacter pylori Infection and Gastroduodenal Pathology in Children.- X. Treatment.- Solubility Characteristics of Different Bismuth Salts in Gastric Juice.- Assessment of Susceptibility of Helicobacter pylori to Tinidazole, Amoxicillin and Tetracycline Among 555 Patients.- In Vivo Acquired Resistance to Fluorquinolones in Helicobacter pylori During Therapy with Ciprofloxacin Alone or Ciprofloxacin plus Amoxicillin Clavulanate.- Treatment of Helicobacter pylori-Positive Lesions: 13C-Urea Breath Test Monitoring and Morphology.- Colloidal Bismuth Subcitrate Plus Amoxicillin Versus Colloidal Bismuth Subcitrate plus Ofloxacin in the Treatment of Chronic Antral Gastritis Positive for Helicobacter pylori.- Factors Affecting Eradication of Helicobacter pylori with Triple Therapy.- Comparison of Three Triple Therapies in the Eradication of Helicobacter pylori.- Ciprofloxacin-Omeprazole Treatment for Eradication of Helicobacter pylori.- Amoxicillin-Omeprazole Treatment for Eradication of Helicobacter pylori.- Eradication of Helicobacter pylori Cures Duodenal Ulcer Disease.- Two-Month Assessment of Duodenal Ulcer Healing and Helicobacter pylori Eradication Rates in Patients Treated for One Month with Omeprazole Alone or Combined with Antibiotics.- Helicobacter pylori and Healing of Refractory Duodenal Ulcer: Preliminary Results of a Randomised Trial.- Treatment with Amoxicillin and Colloidal Bismuth Subcitrate in Children with Helicobacter pylori-Associated Peptic Disease.- Helicobacter pylori and Duodenal Ulcer Relapse: Effect of Bismuth-Free Short-Term Triple Therapy.- Bismuth Subnitrate in Comparison to Ranitidine in Patients with Non-ulcer Dyspepsia: A Randomized Controlled Trial.- Colloidal Bismuth Subcitrate Versus Amoxicillin in the Treatment of Helicobacter pylori-Associated Type B Gastritis.- Response of Helicobacter pylori-Associated Gastritis to Colloidal Bismuth Subcitrate Versus Ranitidine in Patients with Duodenal Ulcer: A Detailed Histological Assessment.- Eradication of Helicobacter pylori: Summary of Workshop.- Treatment of Helicobacter pylori Infection: Challenges and Future Prospects.