John E. Delzell, Jr, MD, MSPH Robert L. Phillips, Jr, MD, MSPH Patricia G. Schnitzer, PhD Bernard Ewigman, MD, MSPH Columbia, Missouri, and Washington, DC Submitted, revised, February 26, 2001. From the Center for Family Medicine Science, Department of Family and Community Medicine, University of Missouri-Columbia (J.E.D., P.G.S., B.E.) and the American Academy of Family Physicians Center for Policy Studies in Family Practice and Primary Care, Washington, DC (R.L.P.). Reprint requests should be addressed to John E. Delzell, Jr, MD, MSPH, Center for Family Medicine Science, Department of Family and Community Medicine, University of Missouri–Columbia, MA 303 Health Sciences Center, DC032.00, Columbia, MO 65212. Email: delzellj@health.missouri.edu.
Acknowledgments
Support for our study was provided by the Center for Family Medicine Science in the Department of Family and Community Medicine at the University of Missouri–Columbia. The Center is funded in part by the American Academy of Family Physicians. We would like to thank Sharon Cornelison, RNC, for her diligent data collection, Darla Horman, MA, for management of the 1992 survey data, and Mirra Smith for data abstraction.
