Abstract Hormonal male contraception clinical trials began in the 1970s. The
method is based on the use of exogenous testosterone alone or in combination
with a progestin to suppress the endogenous production of testosterone and
spermatogenesis. Studies using testosterone alone showed that the method was
very effective with few adverse effects. Addition of a progestin increases the
rate and extent... hiện toàn bộ
Gordon P. Flake, Alicia B. Moore, Deloris Sutton, Norris Flagler, Natasha P. Clayton, Grace E. Kissling, Benita Wicker Hall, John E. Horton, David K. Walmer, Stanley J. Robboy, Darlene Dixon