“Normal Limits of Electrocardiogram and Cut-Off Values for Left Ventricular Hypertrophy in Young Adult Nigerians” (2021) Nigerian Journal of Physiological Sciences, 29(1), पृ. 063 –066. पर उपलब्ध: https://ojshostng.com/index.php/njphysiologicalsciences/article/view/1808 (अंतिम उपयोग: 24 अप्रैल 2026).