Improving Aetiological Diagnosis of Travellers' Diarrhoea Using Multiplex PCR Gastrointestinal Panels: A Retrospective Cross-Sectional Study from a High-Travel Tropical Setting. - Bryananda; Linda; Ari Kurnianingrum, Ni Made (Indonesian Journal of Gastroenterology, Hepatology & Digestive Endoscopy, 2026)