Devianto, A., M. Afrida, and N. Nurningsih. “T The Relationship Between Gastrointestinal Endoscopy and Patient Anxiety Levels at Yogyakarta City Regional Hospital: Hubungan Tindakan Endoskopi Saluran Cerna Dengan Tingkat Kecemasan Pasien Di RSUD Kota Yogyakarta”. Journal of Nursing Invention, vol. 5, no. 1, June 2024, pp. 65-71, doi:10.33859/jni.v5i1.552.