Duodenal pH values in normal controls and in patients with duodenal ulcer.
D000328:Adult; D004381:Duodenal Ulcer / Q000378:metabolism*; D004386:Duodenum / Q000378:metabolism*; D004566:Electrodes; D005215:Fasting; D005745:Gastric Acidity Determination; D005750:Gastric Juice / Q000378:metabolism; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008297:Male; D011199:Potentiometry; D011708:Pylorus