Cervical smears--when and how often.
D000328:Adult; D000367:Age Factors; D000368:Aged; D003581:Cytodiagnosis; D005260:Female; D006801:Humans; D008875:Middle Aged; D006113:United Kingdom; D002583:Uterine Cervical Neoplasms / Q000517:prevention & control*; D014626:Vaginal Smears