Clinical coordination of research
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PII: S0897-1897(05)00018-2
doi:10.1016/j.apnr.2004.08.003
© 2005 Elsevier Inc. All rights reserved.
PII: S0897-1897(05)00018-2
doi:10.1016/j.apnr.2004.08.003
© 2005 Elsevier Inc. All rights reserved.