Prostate-Specific Antigen (PSA Test): Questions & Answers (2017). National Cancer Institute Member Services.
Cita Chicago Style (17a ed.)Prostate-Specific Antigen (PSA Test): Questions & Answers (2017). National Cancer Institute Member Services.
Cita MLA (9a ed.)Prostate-Specific Antigen (PSA Test): Questions & Answers (2017). National Cancer Institute Member Services.
Precaución: Estas citas no son 100% exactas.