Is here a threshold level of fetal hemoglobin that ameliorates morbidity of sickle cell anemia?
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Vasculopathy in sickle cell disease: Biology, pathophysiology, genetics, translational medicine, and new research directions
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Arginase: A critical regulator of nitric oxide synthesis and vascular function
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Pulmonary hypertension as a risk factor for death in patients with sickle cell disease
Gladwin MT, Sachdev V, Jison M, et al: Pulmonary hypertension as a risk factor for death in patients with sickle cell disease. N Engl J Med 2004; 350: 886-895.