>There's an argument to be made that the authors used an improper control group, as their control group apparently excludes men with fertility problems. The authors write: >The control group came from the population who previously received reproductive function evaluation and were classified as having normal fertility In other words, rather than a normal distribution of the population, they're inevitably excluding a portion of subfertile men from their control group. One of the main symptoms commonly seen in subfertile men is the elevated LH levels they observed in COVID19 patients. Ах, какой годный форс пропадает!!!