Akpa, Maclean Rumokere, and Friday Samuel Wokoma. “Electrocardiographic Evaluation of Structural and Electrical Abnormalities in Nigerians Presenting With Undiagnosed Systemic Hypertension”. The Nigerian Health Journal, vol. 12, no. 3, Dec. 2015, p. 82, https://tnhjph.com/index.php/tnhj/article/view/139.