Pedersen AM, Andersen TL, Reibel J, Holmstrup P, Nauntofte B. Clin Oral Investig. 2002 Mar;6(1):11-20. Related Articles, Links, Oral findings in patients with primary Sjogren's syndrome and oral lichen planus-a preliminary study on the effects of bovine colostrum-containing oral hygiene products. Department of Oral Physiology, Anatomy, Pathology and Medicine, School of Dentistry, University of Copenhagen, Denmark.