Casale, V Endoscopy and associated sampling techniques in the diagnosis and surveillance of gastric ulcer. [electronic resource] - Materia medica Polona. Polish journal of medicine and pharmacy - 269-73 p. digital Publication Type: Journal Article ISSN: 0025-5246 Subjects--Topical Terms: AdultBiopsyFemaleFollow-Up StudiesGastroscopyHumansMaleMiddle AgedRecurrenceStomach--pathologyStomach Neoplasms--etiologyStomach Ulcer--complications