title: Cytological mass screening in Ostfold County, Norway.
mesh_terms: D000328:Adult; D000367:Age Factors; D002294:Carcinoma, Squamous Cell / Q000453:epidemiology / Q000473:pathology / Q000517:prevention & control*; D005260:Female; D006801:Humans; D008403:Mass Screening / Q000458:organization & administration*; D008875:Middle Aged; D009664:Norway; D012306:Risk; D002583:Uterine Cervical Neoplasms / Q000453:epidemiology / Q000473:pathology / Q000517:prevention & control*; D014626:Vaginal Smears