title: Bilateral orchiectomy in patients with progressive advanced prostatic cancer.
mesh_terms: D000368:Aged; D002369:Castration; D006801:Humans; D008297:Male; D008875:Middle Aged; D011471:Prostatic Neoplasms / Q000628:therapy*; D013739:Testosterone / Q000097:blood
chemical_list: D013739:Testosterone