Yaguo-Ide, Lucy Eberechukwu, and Alice Rumokek Nte. “Childhood Pneumonia and under-Five Morbidity and Mortality at the University of Port Harcourt Teaching Hospital- a Situational Analysis”. The Nigerian Health Journal, vol. 11, no. 3, Dec. 2015, p. 93, https://tnhjph.com/index.php/tnhj/article/view/64.