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PSA was launched in July 1991 by David Hall, owner of the coin grading company Professional Coin Grading Service (PCGS), to serve collectors as a third-party card grader. [1] At the outset, the business faced difficulties owing to a limited demand from collectors who sought card grading services. [ 2 ]
Professional Sports Authenticator (PSA) focuses on sports and trading cards market. PSA/DNA Autograph Authentication and Grading Services focuses on the autographs and memorabilia market. In the publishing field, the company publishes Rare Coin Market Report and Sports Market Report monthly. [7] [8]
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Prostate-specific antigen (PSA), also known as gamma-seminoprotein or kallikrein-3 (KLK3), P-30 antigen, is a glycoprotein enzyme encoded in humans by the KLK3 gene.PSA is a member of the kallikrein-related peptidase family and is secreted by the epithelial cells of the prostate gland in men and the paraurethral glands in women.
The state of Texas is sending public school students home with DNA kits designed to help their parents identify their children “in case of an emergency.” In 202
What Your PSA Test Results Mean. THE PSA IS a good initial “check engine light” for the prostate, says Garrett Pohlman, M.D., a urologist and host of The Prostate Health Podcast. But it can ...
Platform Security Architecture (PSA) Certified is a security certification scheme for Internet of Things (IoT) hardware, software, and devices. It was created by Arm Holdings, Brightsight, CAICT, Prove & Run, Riscure, TrustCB, and UL as part of a global partnership.
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