Vulnerability of various levels of the esophagus to peptic digestion.
D000818:Animals; D004285:Dogs; D004942:Esophagitis, Peptic / Q000139:chemically induced; D004947:Esophagus / Q000187:drug effects* / Q000473:pathology; D006863:Hydrogen-Ion Concentration; D010434:Pepsin A / Q000494:pharmacology*; D010477:Perfusion
D010434:Pepsin A