four hundred twenty-nine consecutive cases of cervical intraepithelial neoplasia were managed by one of three techniques of carbon dioxide laser surgery : dome-shaped vaporization of ectocervical lesions , cylinder-shaped excision of endocervical disease , or a combination of the two in the case of ectocervical disease that extended into the lower cervical canal .
C0206708
cervical intraepithelial neoplasia
C0007874
cervical canal