Diffusion-based Counterfactual Augmentation: Towards Robust and Interpretable Knee Osteoarthritis Grading. - Zhe Wang 063; Yuhua Ru; Aladine Chetouani; Tina Shiang; Fang Chen; Fabian Bauer; Liping Zhang; Didier Hans; Rachid Jennane; William Ewing Palmer; Mohamed Jarraya; Yung Hsin Chen (CoRR, 2025)