title: The neglected ring pessary.
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D008875:Middle Aged; D019736:Prostheses and Implants / Q000009:adverse effects*; D012408:Rubber; D014596:Uterine Prolapse / Q000628:therapy*; D014627:Vaginitis / Q000209:etiology*
chemical_list: D012408:Rubber