Isiwele, E., I.-A. Bassey, and E. S. Eyam. “Is Serum PSA a Predictor of Lower Urinary Tract Symptom Severity in Nigerian Males 40 Years and Above?”. Asian Journal of Research and Reports in Urology, Vol. 1, no. 1, Sept. 2018, pp. 1-5, http://www.journalajrru.com/index.php/AJRRU/article/view/25442.