Strategies for Recruitment and Retention of Participants in...

Strategies for Recruitment and Retention of Participants in Clinical Trials

Probstfield, Jeffrey L., Frye, Robert L.
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Volume:
306
Language:
english
Journal:
JAMA
DOI:
10.1001/jama.2011.1544
Date:
October, 2011
File:
PDF, 51 KB
english, 2011
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