title: Acquired gynaetresia in Nigeria.
mesh_terms: D000328:Adult; D005260:Female; D005500:Follow-Up Studies; D006399:Hematocolpos / Q000209:etiology* / Q000601:surgery; D006801:Humans; D019684:Magnoliopsida; D009549:Nigeria; D010570:Pessaries / Q000009:adverse effects*; D014627:Vaginitis / Q000209:etiology