[SELECTON OF HEALTHY SUBJECTS FOR THE EXAMINATION OF "NORMAL" GASTRIC SECRETION AND THE PROBLEM OF CONTROL GROUPS FOR COMPARISON IN STUDIES ON GASTRIC SECRETION].
D035061:Control Groups; D005750:Gastric Juice; D005753:Gastric Mucosa; D005756:Gastritis; D064368:Healthy Volunteers; D006801:Humans
GASTRIC JUICE; GASTRIC MUCOSA; GASTRITIS