Title: Helicobacter pylori
Subjects: Peptic Ulcer, Gastritis, Helicobacter pylori, Helicobacter pylori infections, Microbiology, Helicobacter Infections, Medical Microbiology, Infectious Diseases, Gastroenterology, Medical / Nursing, Science/Mathematics, Infectious & contagious diseases, Medical / Gastroenterology, Medical microbiology & virology