title: [Long-term study on gastrointestinal hemorrhage due to acetylsalicylic acid].
mesh_terms: D000328:Adult; D001241:Aspirin / Q000009:adverse effects*; D001810:Blood Volume; D005500:Follow-Up Studies; D006471:Gastrointestinal Hemorrhage / Q000097:blood / Q000139:chemically induced / Q000175:diagnosis*; D006801:Humans; D007503:Iron Isotopes; D008297:Male; D014915:Whole-Body Counting
chemical_list: D007503:Iron Isotopes; D001241:Aspirin
vernacular_title: Langzeitbeobachtungen zur Frage von Gastrointestinalblutungen durch Acetylsalicylsäure.