The relation between gastric vitamin C concentrations, mucosal histology, and CagA seropositivity in the human stomach
Z W Zhang, S E Patchett, D Perrett, P H Katelaris, P Domizio, M J G Farthing
Gut Sep 1998, 43 (3) 322-326; DOI: 10.1136/gut.43.3.322