How useful are unpublished data from the Food and Drug Administration in meta-analysis?

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Volume 56, Issue 1 , Pages 44-51, January 2003

How useful are unpublished data from the Food and Drug Administration in meta-analysis?☆

Catherine H MacLean
- Corresponding author. Tel.: 310-393-0411; fax: 310-451-6917. E-mail address:
- RAND, 1700 Main Street, M-23C, Santa Monica, CA 90407-2138, USA
- Department of Medicine, Division of Rheumatology, UCLA School of Medicine, 1000 Veteran Ave., Room 32–48, Los Angeles, CA, USA
Sally C Morton
- RAND, 1700 Main Street, M-23C, Santa Monica, CA 90407-2138, USA
Joshua J Ofman
- Departments of Medicine and Health Services Research, Division of Gastroenterology, Cedars-Sinai Health System, Beverly Blvd., Los Angeles, CA, USA
- Zynx Health Inc, 9100 Wilshire Blvd., East Tower, Suite 655, Los Angeles, CA, USA
Elizabeth A Roth
- RAND, 1700 Main Street, M-23C, Santa Monica, CA 90407-2138, USA
Paul G Shekelle
- RAND, 1700 Main Street, M-23C, Santa Monica, CA 90407-2138, USA
- Department of Medicine, West Los Angeles VAMC, 11301 Wilshire Blvd., #111G, Los Angeles, CA, USA
- Dr. Shekelle is a Senior Research Associate of the Veterans Affairs Health Services Research and Development.
for the Southern California Evidence-Based Practice Center