title: Hydroxychloroquine crystals in the tear film of a patient with rheumatoid arthritis.
mesh_terms: D001172:Arthritis, Rheumatoid / Q000378:metabolism*; D003460:Crystallization; D005260:Female; D006801:Humans; D006886:Hydroxychloroquine / Q000378:metabolism*; D008875:Middle Aged; D013666:Tears / Q000378:metabolism*
chemical_list: D006886:Hydroxychloroquine