(Q46000438)
Statements
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Challenges of recruitment and retention in multisite clinical research. (English)
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Mary E Cooley
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Linda Sarna
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Jean K Brown
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Roma D Williams
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Cynthia Chernecky
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Geraldine Padilla
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Leda Layo Danao
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1 October 2003
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26
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5
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376-84; quiz 385-6
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