article 2012 Complete sperm suppression induced by dienogest plus testosterone undecanoate is associated with down-regulation in the expression of upstream steroidogenic enzyme genes in rat testis ·doi:10.1016/j.contraception.2011.11.020
article 2012 Complete Sperm Suppression in Rats With Dienogest Plus Testosterone Undecanoate Is Facilitated Through Apoptosis in Testicular Cells ·doi:10.1177/1933719112466305
article 2011 Extended intervention time and evaluation of sperm suppression by dienogest plus testosterone undecanoate in male rat ·doi:10.1016/j.contraception.2011.04.010