research Time Lags Between Various Maturity Measures and Spermarche
Certain maturity signs appear before and after the first release of sperm in boys.
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5 / 8 results research Is Age at Puberty Associated with Semen Quality and Reproductive Hormones in Young Adult Life?
Men who start puberty later may have lower sperm quality and different hormone levels in adulthood.
research Comparison of Artificial Sebum with Human and Hamster Sebum Samples
Artificial sebum L closely mimics human sebum for drug delivery research.
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