Regarding positive smears with normal colposcopy and the frequency of CIN.
Townsend
D E
DE
D003127:Colposcopy; D005188:False Negative Reactions; D005260:Female; D006801:Humans; D002583:Uterine Cervical Neoplasms / Q000473:pathology*; D014626:Vaginal Smears; D002578:Uterine Cervical Dysplasia / Q000473:pathology*