Fixed-dried blood platelets
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United States of America Patent
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Sep 1, 1981
Issued Date -
N/A
app pub date -
Aug 2, 1978
filing date -
Feb 25, 1977
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Screening tests and bioassay of von Willebrand's factor (platelet aggregating factor) in human and animal blood plasma are effected using a reagent of blood platelets and snake venom having a positive platelet aggregating cofactor effect. The reagent and tests may also suitably employ dried blood platelets. The reagent may comprise dried platelets and either ristocetin or active snake venom as the platelet aggregating cofactor.
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