Mohsen Khosravi, Maryam Yousefi-Roobiyat, Zahra Asghari, Motahareh Nakhaei, Fatemeh Khosravi. "Comparison of the performance of ChatGPT-5, Gemini 3, Copilot, Perplexity, and medical students in answering neurology questions: a cross-sectional study." Scientific Reports, 2026. doi:10.1038/s41598-026-47666-5