title: Acquired type I von Willebrand's disease in a patient with essential thrombocytosis.
mesh_terms: D002648:Child; D005260:Female; D006801:Humans; D009196:Myeloproliferative Disorders / Q000150:complications; D013922:Thrombocytosis / Q000150:complications*; D014842:von Willebrand Diseases / Q000209:etiology*