Systematic ReviewPublished 28 April 2026Multimodal prehabilitation for upper gastrointestinal tumors: effects on postoperative morbidity and mortality – a meta-analysis of randomized controlled trialsCsenge Papp · Armand Csontos · Daniel Kehl · Lili Dora Sindler · Andras Vereczkei · Andras PappPathology and Oncology Researchdoi 10.3389/pore.2026.1612328