Department of Gastrosurgical Research and Education;
Institute of Clinical Sciences;
Sahlgrenska Academy at University of Gothenburg;
Department of Pediatrics;
Institute of Clinical Sciences;
Sahlgrenska Academy at University of Gothenburg;
Helicobacter; pylori; Radical; Myeloperoxidase; Nicotinamide; adenine; dinucleotide; phosphate; Nitrotyrosine; Gastric;