King-Bertram, Chiagozie C, Esther I Etu, Nyejirime Y Wike, Achi U Franklyn, Ukamaka P Obichukwu-Ehighibe, Ndubuisi N Richards, Chinedu P Maduka, et al. “Evaluation of Oxidative Stress Levels in Codeine-Induced and Codeine Recovery Phase of Albino Rats ”. Tropical Journal of Natural Product Research (TJNPR) 9, no. 2 (February 28, 2025): 541 – 544. Accessed April 1, 2025. https://tjnpr.org/index.php/home/article/view/5830.