4Diane Solomon. The 1988 Bethesda System for reporting cervical/vaginal cytologic diagncses; developed and approved at the national cancer institute workshop in Bethesda [ J ].HumPathology, 1990; 2: 704 - 708.
5Robert J, Solomon KD. The Bethesda System for reporting cervical/viginal cytologic diagnoses [ M] New York:Springer, 1994:1 - 50.