Leoni, Matteo Luigi Giuseppe, Y Van Tran, Van Phong Pham, and Giustino Varrassi. 2026. “Enhancing Rigor in Narrative Reviews: Protocol for the Validation of a Structured Narrative Review Framework via Delphi Consensus”. Advancements in Health Research 3 (1). https://doi.org/10.4081/ahr.2026.142.