Effectiveness of Adjuvant Fluorouracil in Elderly Colon Cancer Patients: The Internal and External Validity of Nonrandomized Research Design

In Reply:

  • Lamont, Elizabeth B.
  • Iwashyna, Theodore J.

  • 1The University of Chicago, Chicago, IL

    2The University of Pennsylvania, Philadelphia, PA

Journal of Clinical Oncology 21(9):p 1893, May 1, 2003.
Copyright © 2003 American Society of Clinical Oncology