title: Serum group I pepsinogens.
mesh_terms: D000126:Achlorhydria / Q000097:blood; D004381:Duodenal Ulcer / Q000097:blood; D005756:Gastritis / Q000097:blood; D006801:Humans; D010435:Pepsinogens / Q000097:blood*
chemical_list: D010435:Pepsinogens