TREATMENT OF PATIENTS WITH PEPTIK ULCER OF THE STOMACH AND DUODENUM IN A POLYCLINIC. World Bulletin of Public Health, [S. l.], v. 54, p. 1–3, 2026. Disponível em: https://scholarexpress.net/index.php/wbph/article/view/5773. Acesso em: 27 jan. 2026.