Mathematics, 03.09.2020 23:01 effypoosays4304

In a study to support drug discovery for patients with lung cancer, patients were divided into 3 groups based on the severity of the disease. Smoking and alcohol consumption habits were recorded for all 3 groups. Is this an example of an observational study or experimental study

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In a study to support drug discovery for patients with lung cancer, patients were divided into 3 gro...

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