Using sedative premedication versus clown therapy

Dear writer, I like your work the last time and I want you to help me in one questions only this time which is question 3 again. However, I did work on different research questions. I need more evidence and references.
Check it out and fix it..

I Only upload the question that I need help with its instruction included . I hope there is no miss understanding like before.

best regards,
Sara

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