Predictive models for prostate cancer in patients with prostate-specific antigen levels in the gray zone using machine learning: a multi-center study. - Farhat, Karim; Arafa, Mostafa; Lotfy, Nesma; Khan, Farrukh; Althunayan, Abdulaziz; Mokhtar, Alaa; Altaweel, Waleed; Al-Khateeb, Sultan; Azhari, Sami; Rabah, Danny (African Journal of Urology, 2026)