Susanto, Hendri, Puput Kendarwati, Sri Budiarti, Supriatno ., Bagus Soebadi, and Diah Ernawati. “Serum Vitamin B12 Associated With Vitamin D/25(OH)D in Women With Recurrent Aphthous Stomatitis.”. Journal of Oral Research 9, no. 1 (February 28, 2020): 21-28. Accessed March 13, 2026. https://joralres.com/index.php/JOralRes/article/view/joralres.2020.004.