Mai, Tu-Phuong, 		Le, Minh-Ha H., 		Tran, Duc-Luong, 		Can, Duy-Cat, AND 		Le, Hoang-Quynh.
" Enhancing Suicide Risk Classification: A Multi-Stage Framework with Sentence-Level Waterfall Architecture for Clinical Notes Analysis" <em>VNU Journal of Science: Computer Science and Communication Engineering</em> [Online], (19 May 2026)