1. Serum vitamin D concentration in patients with oral lichen planus in Northern India: A case-control study;Gupta;J Dermatol Res Ther,2017
2. Comparing the vitamin D levels of people with oral lichen planus to those of healthy individuals;Bahramian;J Dent,2018
3. Oral lichen planus as a preneoplastic inflammatory model?;Georgakopoulou;J Biomed Biotechnol,2012
4. Cutaneous and mucosal lichen planus: A comprehensive review of clinical subtypes, risk factors, diagnosis, and prognosis?;Gorouhi;Scient World J,2014
5. M. Burket's Oral Medicine. 12th ed. USA: Glick PMPH; 2015. p. 104-8.