male genital system 10 cyproterone acetate 8 endocrine system 8 epididymis 8 nonhuman 8 androgen 6 androstanolone 6 rat 6 testosterone 6 Animalia 4 Cyproterone 4 Cyproterone Acetate 4 Epididymis 4 Male 4 Testosterone 4 amino acid h 3 4 animal cell 4 article 4 castration 4 in vitro study 4 radioisotope 4 unclassified drug 4 Adult 2 Aged 2 Amino Acids 2 Androgen Antagonists 2 Androgens 2 Androstane-3,17-diol 2 Animals 2 Caput 2