Original ResearchPublished 25 September 2026Multi-resource operating room scheduling: a three-stage heuristic for efficiency and patient safetyWon-Chol Kim · So-Yong Kim · Gyong-Sim Ri · Hyon-U. Kong · Myong-Chol Chae · Un-Sung PakFrontiers in Industrial Engineeringdoi 10.3389/fieng.2026.1901669