Sadeghi, Mostafa, 		Zarabadipour, Mahdieh, 		Azmodeh, Faezeh, 		Mirzadeh, Monirsadat, AND 		Golezari, Ali.
" Association of serum level of 25-hydroxy vitamin D  with Oral Lichen Planus. A case-control study." <em>Journal of Oral Research</em> [Online], Volume 9 Number 5 (31 October 2020)