Chaitanya, N.C. et al. 2020. Serological and psychological assessment of patients with oral lichen planus using serum cortisol levels and hads questionnaire—a case control study. Journal of Population Therapeutics and Clinical Pharmacology. 27, 2 (Apr. 2020), e19-e27. DOI:https://doi.org/10.15586/jptcp.v27i2.667.