Grant Marais

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Pandemic influenza A (H1N1) virus infection was first identified in March 20091; more than 3000 deaths have been reported worldwide,2 with highest complication rates in those with preexisting medical conditions.3 Patients with sickle cell disease (SCD) are thought to be at increased risk of complications, although there are limited data supporting this.(More)
Sickle cell disease (SCD) is a common cause of cerebrovascular disease in childhood. Primary stroke prevention is effective using transcranial Doppler (TCD) scans to measure intracranial blood velocities, and regular blood transfusions or hydroxycarbamide when these are abnormal. Inadequate TCD scans occur when it is not possible to measure velocities in(More)
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