Talk:Positive control

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This article is a mess. It appears to be talking about a term with three (or only two?) usages, each of which merits its own section. Each sentence makes sense - the article seems incoherent and possibly contradictory. GRBerry 02:32, 19 May 2006 (UTC)

Done. References are still needed, though. 66.229.160.94 09:27, 3 August 2006 (UTC)