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National Heart, Lung, and Blood Institute
Saline solution (0.9% sodium chloride) is sometimes used but has disadvantages
Womens hormonal fluctuations may alter drug efficacy and side effect profiles, necessitating gender-stratified trials
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Reported prevalence varies across populations and study designs, with estimates ranging from approximately one-third to over one-half of respondents admitting to the use of performance-enhancing substances, including anabolicandrogenic steroids (5, 6)
However, the effect depends on our natural skin tone, our genes, and the dose we use
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