Question: Determine whether the description corresponds to an observational study or an experiment. Fifty patients on dialysis are divided into two groups. One group receives an

Determine whether the description corresponds to an observational study or an experiment. Fifty patients on dialysis are divided into two groups. One group receives an experimental drug to fight cancer, the other a placebo. After two years, kidney functionality is measured. Question content area bottom Part 1 Does the description correspond to an observational study or an experiment

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