Case-controlled observation

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Select the study that is most appropriate and EXPLAIN WHY it is most appropriate for the study.

Is the aspirin produced by a particular pharmaceutical company better than that of a competitor at relieving headaches? Which of the following would best be used to study this:

1) a case-controlled observation;

2) an observation;

3) a double-blind experimental procedure; and

4) and experimental procedure.

Reference no: EM13894812

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