Context-aware chatbot for personal healthcare assistance using LLMs and LangChain. - Syeda Kaneez Fatima; Shazia Arshad; Muhammad Awais Hassan; Faiza Iqbal; Ayesha Altaf; Iram Aziz; Imran Ashraf 003; Nagwan M. Abdel Samee (J. Intell. Inf. Syst., 2025)