Sibley, R. I., & Sibley, A. F. (1997). Correlation of digital rectal examination, prostate specific antigen, and transrectal ultrasound in prostate carcinoma in African Americans. National Medical Association.
Chicago Style aipamenaSibley, R. I., and A. F. Sibley. Correlation of Digital Rectal Examination, Prostate Specific Antigen, and Transrectal Ultrasound in Prostate Carcinoma in African Americans. National Medical Association, 1997.
MLA aipamenaSibley, R. I., and A. F. Sibley. Correlation of Digital Rectal Examination, Prostate Specific Antigen, and Transrectal Ultrasound in Prostate Carcinoma in African Americans. National Medical Association, 1997.
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