The secretion of pepsin during the gastric phase of gastric secretion.
D016282:Aspartic Acid Endopeptidases; D005750:Gastric Juice; D006801:Humans; D010434:Pepsin A; D013270:Stomach
D016282:Aspartic Acid Endopeptidases; D010434:Pepsin A
GASTRIC JUICE; PEPSINS