P. N. Onwuchekwa and F. U. Idigo, “SONOGRAPHIC DETERMINATION OF NORMATIVE VALUES OF INFRA-RENAL AORTIC DIAMETER IN A NEGROID POPULATION IN NIGERIA”, JRRS, vol. 28, no. 1, pp. 11–15, Jan. 2026, doi: 10.82547/jrrs.vol28no1.108.