Comment on

• Peer review and federal regulations.

  Steinbrook R. Steinbrook R. N Engl J Med. 2004 Jan 8;350(2):103-4. doi: 10.1056/NEJMp038230. N Engl J Med. 2004. PMID: 14711908 No abstract available.
• Validation of the Harvard Six Cities Study of particulate air pollution and mortality.

  Krewski D, Burnett RT, Goldberg MS, Hoover K, Siemiatycki J, Abrahamowicz M, White WH. Krewski D, et al. N Engl J Med. 2004 Jan 8;350(2):198-9. doi: 10.1056/NEJM200401083500225. N Engl J Med. 2004. PMID: 14711928 No abstract available.