title: pH in the human duodenum. Its physiological and pathophysiological significance.
mesh_terms: D004381:Duodenal Ulcer / Q000139:chemically induced / Q000209:etiology / Q000503:physiopathology*; D004386:Duodenum / Q000502:physiology* / Q000503:physiopathology; D005745:Gastric Acidity Determination; D005750:Gastric Juice / Q000032:analysis / Q000378:metabolism; D006801:Humans; D006863:Hydrogen-Ion Concentration; D010195:Pancreatitis / Q000150:complications; D012633:Secretin / Q000494:pharmacology; D012636:Secretory Rate; D012907:Smoking / Q000150:complications
chemical_list: D012633:Secretin