tobacco tennis & Virginia Slims – The Center for the Study of Tobacco and Society Tennis players smoking a cigarette
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This makes gas exchange more difficult, as the diffusion distance between the air in the alveoli and the blood in the capillaries is greater
The androgenic hormones secreted by testis play important roles in maintaining the spermatogenic niche and the spermatogenesis process.26 Thus, we will discuss the effects of smoking on reproductive hormones and the spermatogenesis process here

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