Abstract
From Family Health International, Research Triangle Park, and Department of Obstetrics and Gynecology, UNC School of Medicine, Chapel Hill, North Carolina. The author thanks Dr. William Droegemueller for providing helpful comments on an earlier draft. Corresponding author: David A. Grimes, MD, Family Health International, P. O. Box 13950, Research Triangle Park, NC 22709; e-mail: [email protected]. Financial Disclosure The author did not report any potential conflicts of interest.
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