Modeling and Simulation of Lower Limb Rehabilitation Exoskeletons: A Comparative Analysis for Dynamic Model Validation and Optimal Approach Selection. - Rana Sami Ullah Khan; Muhammad Tallal Saeed; Zeashan Khan; Urooj Abid; Hafiz Zia Ur Rehman; Zareena Kausar; Shiyin Qin (Robotics, 2025)