Data linkage reduces loss to follow-up in an observational HIV cohort study
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PII: S0895-4356(10)00017-X
doi:10.1016/j.jclinepi.2009.12.007
© 2010 Elsevier Inc. All rights reserved.
PII: S0895-4356(10)00017-X
doi:10.1016/j.jclinepi.2009.12.007
© 2010 Elsevier Inc. All rights reserved.