Comment on

• [Norwegian breast cancer mortality rates and validity of Swedish mammographic studies].

  Zahl PH, Kopjar B, Maehlen J. Zahl PH, et al. Tidsskr Nor Laegeforen. 2001 Jun 20;121(16):1928-31. Tidsskr Nor Laegeforen. 2001. PMID: 11488185 Norwegian.
• [When will mammography screening reduce breast cancer mortality?].

  Strand BH, Zahl PH. Strand BH, et al. Tidsskr Nor Laegeforen. 2001 Aug 30;121(20):2390-2. Tidsskr Nor Laegeforen. 2001. PMID: 11603048 Norwegian.
• [Mammography trials].

  Rutqvist LE. Rutqvist LE. Tidsskr Nor Laegeforen. 2001 Sep 20;121(22):2636-7. Tidsskr Nor Laegeforen. 2001. PMID: 11668767 Norwegian. No abstract available.