Postcards Encourage Participant Updates

Epidemiology 2009 / 03 Vol. 20; Iss. 2

Postcards Encourage Participant Updates

Kari E. Welch, Cynthia A. LeardMann, Isabel G. Jacobson, Steven J. Speigle, Besa Smith, Tyler C. Smith and Margaret A. Ryan
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Volume:
20
Language:
english
Journal:
Epidemiology
DOI:
10.2307/20485708
Date:
March, 2009
File:
PDF, 431 KB
english, 2009
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