For the proportion dropped off, age was marginally significant, and a heterogeneous autoregression 1 (ARH[1]) covariance structure suggested (this differs from AR(1) in that variances can differ among testing time points).
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Formulations of deet, picaridin, and IR3535 applied to skin repel nymphs of the lone star tick (Acari: Ixodidae) for 12 hours.
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