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Von Willebrand Disease (VWD)
Part 1: NHLBI Diagnosis Guidelines

Introduction & Clinical Assessment Recommendations


Slide 12

May 2011

Evidence-based recommendations were graded based on assessment of the strength of the evidence. Grade A was reserved for recommendations based on the highest level of evidence; grade B denoted recommendations supported by intermediate levels of evidence; and grade C was used for recommendations based on expert opinions and/or clinical experience of respected authorities.



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