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Aggregate grading is crucial in economically obtaining a concrete mix with adequate strength, reasonable workability, and minimal segregation. There are four types of aggregate gradation: well-graded, uniformly (or one-sized) graded, gap-graded, and open-graded.
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Another AVM Grading Scale … Really?

R Webster Crowley1

  • 1Department of Neurosurgery, Rush University, Chicago, Illinois, USA.

World Neurosurgery
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PubMed
Summary

No abstract available in PubMed .

Keywords:
AVM grading systemArteriovenous malformationIntracerebral hemorrhageLawton-Young gradeSpetzler-Martin gradeSupplemented Spetzler-Martin grade

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