Prostate-Specific Antigen (PSA Test): Questions & Answers (2017). National Cancer Institute Member Services.
Cita Chicago (17th ed.)Prostate-Specific Antigen (PSA Test): Questions & Answers (2017). National Cancer Institute Member Services.
Cita MLA (9th ed.)Prostate-Specific Antigen (PSA Test): Questions & Answers (2017). National Cancer Institute Member Services.
Atenció: Aquestes cites poden no estar 100% correctes.