Ключевые слова: analyzing, bacteria, bacterial, bacterium, biology, blood, blood test, checkup, diagnosis, disease, exam, fever, gastritis, health care, helicobacter pylori, hospital, hpylori, illness, immunology, infection, lab, laboratory, medical, medical technology, medicine, micro organism, microbiology, patient, peptic ulcer, research, science, scientific experiment, serology, stomach, test,