The American Journal of Medicine
Volume 110, Issue 5 , Pages 347-351, 1 April 2001

Declining rate of substance abuse throughout the month

  • Scott D Halpern, BS

      Affiliations

    • Center for Clinical Epidemiology and Biostatistics (SDH), University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA
    • Corresponding Author InformationRequests for reprints should be addressed to Scott D. Halpern, BS, 108 Blockley Hall, 423 Guardian Drive, Philadelphia, Pennsylvania 19104
    • ,
  • C.Crawford Mechem, MD

      Affiliations

    • Department of Emergency Medicine (CCM), University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA

Received 21 August 2000; received in revised form 27 November 2000; accepted 27 November 2000.

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PII: S0002-9343(00)00749-X

The American Journal of Medicine
Volume 110, Issue 5 , Pages 347-351, 1 April 2001

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