https://pubmed.ncbi.nlm.nih.gov/33434886/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8190708/https://www.sciencemediacentre.org/expert-reaction-to-study-looking-at-covid-19-and-male-reproductive-function/https://www.fertstertscience.org/article/S2666-335X(21)00064-1/fulltext