title: Ejaculation frequency and prostate cancer.
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D004542:Ejaculation; D006801:Humans; D008297:Male; D017533:Marital Status; D008875:Middle Aged; D011471:Prostatic Neoplasms / Q000209:etiology; D012747:Sexual Partners; D013739:Testosterone / Q000097:blood; D013997:Time Factors
chemical_list: D013739:Testosterone