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A spline for the time
  1. Correspondence to Joel Schwartz, Harvard School of Public Health, 401 Park Drive, P.O. Box 15677, Suite 415L West, Boston 02215, USA; jschwrtz{at}
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Schwartz J
A spline for the time

Publication history

  • Accepted December 20, 2010
  • First published May 26, 2011.
Online issue publication 
September 20, 2011

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