Degirmenci, Yildiz, Ceyda Hayretdag Ors, Yeliz Yilmaz, and Handan Isin Ozisik Karaman. 2021. “Visual Evoked Potentials in Vitamin B12 Deficiency: Results of a Preliminary Study”. Annals of Medical Research 19 (2):0096-0099. http://www.annalsmedres.org/index.php/aomr/article/view/3520.