Comment on

• Proposed revisions to the Declaration of Helsinki--will they weaken the ethical principles underlying human research?

  Brennan TA. Brennan TA. N Engl J Med. 1999 Aug 12;341(7):527-31. doi: 10.1056/NEJM199908123410712. N Engl J Med. 1999. PMID: 10441612 No abstract available.
• The need to revise the Declaration of Helsinki.

  Levine RJ. Levine RJ. N Engl J Med. 1999 Aug 12;341(7):531-4. doi: 10.1056/NEJM199908123410713. N Engl J Med. 1999. PMID: 10441613 No abstract available.