title: Sulcus subtarsalis in trachoma.
mesh_terms: D002921:Cicatrix; D003228:Conjunctiva / Q000473:pathology / Q000503:physiopathology; D004391:Dust; D004774:Entropion / Q000150:complications; D005129:Eye Foreign Bodies / Q000150:complications; D006801:Humans; D014141:Trachoma / Q000503:physiopathology*
chemical_list: D004391:Dust