(2) we will then conduct a post hoc analysis of NMR as a predictor or moderator of treatment outcome in the two treatment groups
Hernn MA, Hernndez-Daz S, Robins JM (2004) A structural approach to selection bias
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Thus, China Tobacco functions as both a company and a regulatory agency for the Chinese tobacco market, creating "an obvious conflict of interest." "China Tobacco has been exploiting this insider status and wielding its influence within the government to effectively block the adoption of tobacco control policies," he added