title: [Morphological study on the pathogenesis of pterygium].
mesh_terms: D002452:Cell Count; D006801:Humans; D008214:Lymphocytes / Q000473:pathology; D008407:Mast Cells / Q000473:pathology; D011625:Pterygium / Q000209:etiology / Q000473:pathology*; D012008:Recurrence