A hybrid optimization approach for securing cloud-based e-health systems. - Altherwi, Abdulhadi; Ahmad, Mohammad Tauheed; Alam, Md. Moddassir; Mirza, Hidayath; Sultana, Nazia; Pasha, Amjad Ali; Sultana, Nishat; Khan, Asif Irshad; Alam, Md Mottahir; Azim, Rezaul (Multimedia Tools & Applications, 2025)