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Review Question - QID 4830

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QID 4830 (Type "4830" in App Search)
A study was designed to measure the benefit of subacromial corticosteroid injections. Participants were randomized to methylprednisolone acetate 40 mg with lidocaine 1% or lidocaine 1% alone. The participants were not provided with information of their treatment allocation. The subacromial injection was prepared and administered by a single orthopaedic surgeon. Results were collected by the orthopaedic surgeon using clinical and patient satisfaction outcome scores at 6, 12, and 24 weeks. Which of the following would best describe this type of study?
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