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Difference in pain perception between baseline and the 5 clustered posttreatment measurements. Mean pain perception (± standard error) in both groups (ie, Endocare, control) at baseline (black: T0) and the 5 clustered posttreatment measurements (white: T15, T30, T45, T60, and T240). ##P<.01 (interaction group*time); **P<.01 (mixed model) ***P<.001 (mixed model).
