1. Forcible and rapid dilatation of the cervix uteri, for the cure of dysmenorrhœa: with a new method of treatment for the permanent relief of flexion Author(s): Ball, John, 1818-1890, author Publication: New York : D. Appleton and Company, 1873 Subject(s): Dysmenorrhea -- surgeryDilatation and Curettage -- methodsCervix Uteri -- surgeryPessaries