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In a study on fish oil supplementation and heart disease, a randomized, double-blind, placebo-controlled design...

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In a study on fish oil supplementation and heart disease, a randomized, double-blind, placebo-controlled design was used. However, the study subjects who were receiving the fish oil treatment had bad, fishy smelling breath, while control subjects did not. What aspect of study design failed in this study?a. Single blindingb. RandomizationC. Selection of study participantsd. Double blinding

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In a study on fish oil supplementation and heart disease, a randomized, double-blind, placebo-controlled design was used. However, the study subjects who were receiving the fish oil treatment had bad, fishy smelling breath, while control subjects did not. What aspect of study design failed in this study?a. Single blindingb. RandomizationC. Selection of study participantsd. Double blinding

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