Points to consider about recruitment and retention while preparing a clinical research study
Keyword(s):
1997 ◽
Vol 97
(9)
◽
pp. A34
2007 ◽
Vol 41
(1)
◽
pp. 16
◽
2006 ◽
Vol 37
(4)
◽
pp. 231-234
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Keyword(s):