Combined analysis of data from north-east Scotland and Iceland.
D000328:Adult; D000367:Age Factors; D005260:Female; D006801:Humans; D007055:Iceland; D008403:Mass Screening / Q000379:methods*; D008875:Middle Aged; D012606:Scotland; D002583:Uterine Cervical Neoplasms / Q000473:pathology / Q000517:prevention & control*; D014626:Vaginal Smears