title: Response to the letter by Maria Feychting and Anders Ahlbom (Cancer Causes and Control 10: 637, 1999.) Why is the cancer pattern so different among visually impaired persons in Finland and Sweden?
authors.forename: E
authors.initials: E
authors.lastname: Pukkala
authors.forename: P
authors.initials: P
authors.lastname: Verkasalo
authors.forename: M
authors.initials: M
authors.lastname: Ojamo
authors.forename: S L
authors.initials: SL
authors.lastname: Rudanko
mesh_terms: D001766:Blindness; D005260:Female; D005387:Finland / Q000453:epidemiology; D006801:Humans; D008297:Male; D009369:Neoplasms / Q000453:epidemiology* / Q000209:etiology; D015203:Reproducibility of Results; D012107:Research Design; D018570:Risk Assessment; D018401:Sample Size; D012621:Seasons; D013548:Sweden / Q000453:epidemiology