Liang Zhou, Brij B. Gupta, Akshat Gaurav, Razaz Waheeb Attar, Ahmed Alhomoud, Varsha Arya, Ching-Hsien Hsu. "Retraction Note: AI-optimized GRU-based self-attention model for predictive diabetes staging in IoT healthcare 5.0." Scientific Reports, 2026. doi:10.1038/s41598-026-57351-2