Susanto, H., Kendarwati, P., Budiarti, S., ., S., Soebadi, B., & Ernawati, D. (2020). Serum vitamin B12 associated with vitamin D/25(OH)D in women with recurrent aphthous stomatitis.. Journal Of Oral Research, 9(1), 21-28. doi:10.17126/joralres.2020.004