A 22-year-old woman has a lifelong history of heavy menstrual bleeding, prolonged bleeding after dental procedures, and a normal PT and platelet count but prolonged aPTT and PFA-100 closure time. von Willebrand factor antigen is 35% (low). What is the most likely diagnosis?
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A
Hemophilia A
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B
Type 1 von Willebrand disease
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C
Bernard-Soulier syndrome
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D
Glanzmann thrombasthenia