19. Calls upon States to take all necessary measures, including legal reforms where appropriate, to eliminate all forms of discrimination against girls and all forms of violence, including female infanticide and prenatal sex selection, rape, sexual abuse and harmful traditional or customary practices, including female genital mutilation, marriage without the free and full consent of the intending spouses, early marriage and forced sterilization, by enacting and enforcing legislation and by formulating, where appropriate, comprehensive, multidisciplinary and coordinated national plans, programmes or strategies to protect girls;