Dundar, A., C. Barutcugil, S. Gul Batmaz, K. Yildirim, and O. Gucluer. “Long-Term Monomer Elution from Bulk-Fill Composite Resins”. Annals of Medical Research, vol. 27, no. 10, May 2021, pp. 2731-6, http://www.annalsmedres.org/index.php/aomr/article/view/988.