Enhancing Low-Resource Healthcare Chatbots via Multi-Stage Data Augmentation and IndoBERT Fine-Tuning - Ahmad Wahyu Rosyadi; Taufiqur Rohman; Moh. Rizki Fajar; Muhammad Qomaruz Zaman; Siti Ma'shumah (Indonesian Journal of Electronics, Electromedical Engineering, and Medical Informatics, 2026)