Hapsari, Putie, et al. “Correlation of Nutritional Status, HbA1c, and Duration of Diabetes Mellitus With Amputation Incidence in Patients With Diabetic Foot Ulcers”. Majalah Kedokteran Bandung, vol. 57, no. 2, June 2025, pp. 148-55, doi:10.15395/mkb.v57.4094.