i need to do tha sample size for my project

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I need to calculate my sample size for my project with specific way.
i need to figure out the salivary function as continues variable (ml/min)

So I need to know the standard deviation of the variable which is the salivary function and dental caries , and I have to write the name of the paper (from where I got the number

My Null hypothesis: Integrase inhibitor have no effect on salivary hypofunction and dental caries among HIV + women on ART.

I will attched exact example for what I need .

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