From the *Department of Health Services, University of California, Los Angeles School of Public Health, Los Angeles, California; and the †Center for Interdisciplinary Health Workforce Studies, Institute for Medicine & Public Health, Vanderbilt University Medical Center and Vanderbilt University School of Nursing, Nashville, Tennessee. Reprints: Jack Needleman, PhD, Department of Health Services, Room 31-236B CHS, University of California, Los Angeles School of Public Health, 650 Charles Young Drive S., Los Angeles, CA 90095. E-mail: [email protected].
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Needleman et al. (2007) studied this question.
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