R. A. Syahri, N. D. Susanti, R. Novirianthy, I. Zakaria, and Z. Zulkarnain, “Beyond eGFR and proteinuria: Noninvasive ultrasonographic markers of renal impairment in diabetic kidney disease”, Narra J, vol. 6, no. 3, p. e3146, Sep. 2026.