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Paula C. Southwick

Researcher at Beckman Coulter

Publications -  33
Citations -  5477

Paula C. Southwick is an academic researcher from Beckman Coulter. The author has contributed to research in topics: Prostate cancer & Prostate-specific antigen. The author has an hindex of 24, co-authored 33 publications receiving 5330 citations. Previous affiliations of Paula C. Southwick include Washington University in St. Louis & San Diego State University.

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Comparison of digital rectal examination and serum prostate specific antigen in the early detection of prostate cancer: results of a multicenter clinical trial of 6,630 men.

TL;DR: In this paper, a prospective clinical trial at 6 university centers of 6,630 male volunteers 50 years old or older who underwent PSA determination (Hybritech Tandom-E or Tandem-R assays) and digital rectal examination was conducted.
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Comparison of percent free PSA, PSA density, and age-specific PSA cutoffs for prostate cancer detection and staging.

TL;DR: It is demonstrated that cancer detection (sensitivity) is significantly higher with fPSA than with age-specific PSA reference ranges, and that %fPSA may be used in place of PSAD for biopsy decisions and in algorithms for prediction of less aggressive tumors since the determination of %f PSA does not require ultrasound.
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Selection of Optimal Prostate Specific Antigen Cutoffs for Early Detection of Prostate Cancer: Receiver Operating Characteristic Curves

TL;DR: A prospective clinical trial of prostate cancer screening was conducted at 6 university centers including 6,630 men 50 years old or older who underwent a serum prostate specific antigen (PSA) determination and digital rectal examination, which concluded that a serum PSA concentration of 4.0 ng./ml should be used as a general guideline for biopsy in all age groups.