Comment on

• Drug promotion for an unlabeled indication--the case of topical tretinoin.

  Stern RS. Stern RS. N Engl J Med. 1994 Nov 17;331(20):1348-9. doi: 10.1056/NEJM199411173312006. N Engl J Med. 1994. PMID: 7935705 No abstract available.
• Therapeutic-class wars--drug promotion in a competitive marketplace.

  Kessler DA, Rose JL, Temple RJ, Schapiro R, Griffin JP. Kessler DA, et al. N Engl J Med. 1994 Nov 17;331(20):1350-3. doi: 10.1056/NEJM199411173312007. N Engl J Med. 1994. PMID: 7935706 No abstract available.