By ABC on 05/21/2018
“… The idea of creating a male contraceptive has been around almost as long as the female contraceptive. In theory, targeting the production of sperm should be a simple process. The biology of sperm productionand how they swim towards the egg are well understood. …”
Read the entire article: http://www.abc.net.au/news/2018-05-22/male-contraceptive-pill-vasalgel-sperm-mens-fertility/9786070