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  • ARTICLE April 14, 1997

    James E. Bailey, MD, MPH; Arthur L. Kellermann, MD, MPH; Grant W. Somes, PhD; Joyce G. Banton, MS; Frederick P. Rivara, MD, MPH; Norman P. Rushforth, PhD

    Arch Intern Med. 1997; 157(7):777-782. doi: 10.1001/archinte.1997.00440280101009