Oboh, Ganiyu, Opeyemi B. Ogunsuyi, Sunday I. Oyeleye, and Stephen A. Adefegha. 2021. “Tropical Fruits and Vegetables As Immune Boosters Against Coronavirus Disease (COVID-19): Call for Cautious Optimism: doi.org 10.26538 Tjnpr V5i9.1”. Tropical Journal of Natural Product Research (TJNPR) 5 (9):1521-27. https://tjnpr.org/index.php/home/article/view/398.