The PSA position.
D055088:Early Detection of Cancer / Q000592:standards* / Q000639:trends; D006287:Health Planning Guidelines; D006291:Health Policy / Q000639:trends*; D006801:Humans; D008297:Male; D017430:Prostate-Specific Antigen / Q000032:analysis*; D011471:Prostatic Neoplasms / Q000175:diagnosis*; D011634:Public Health; D014481:United States
D017430:Prostate-Specific Antigen