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Clinical Chemistry, Vol 10, 69-74, Copyright © 1964 by the American Association for Clinical Chemistry
1 Ortho Research Foundation, Raritan, N. J.
A stable sensitive partial thromboplastin reagent is prepared from an ether extract of acetone-dried bovine brain. The normal oxalated plasma partialthromboplastin time range with this reagent is 66-86 sec. Lyophilized plasmas deficient in coagulation factors give prolonged partial thromboplastin test times. Some of the properties of this reagent are discussed.
Submitted on March 21, 1962
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