Problem of hydrochloric acid formation in the stomach.
D001669:Biochemical Phenomena; D001671:Biochemistry; D001693:Biological Transport, Active; D002712:Chlorides; D005750:Gastric Juice / Q000378:metabolism / Q000502:physiology*; D005753:Gastric Mucosa / Q000166:cytology / Q000378:metabolism; D006801:Humans; D006859:Hydrogen; D007477:Ions; D013270:Stomach / Q000502:physiology*
D002712:Chlorides; D007477:Ions; D006859:Hydrogen