S. Ayoub, R., D. Hadi, A. and A. Al-Shandok, T. 2006. Effect of Natural apple cider vinegar on morphometric changes of salivary glands in hydroxyurea treated mice. Journal of Education and Science. 18, 3 (Sep. 2006), 62–77. DOI:https://doi.org/10.33899/edusj.2006.162868.