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Randy Young
 - blood flow

Peripheral artery disease is under scrutiny as the number of endovascular interventions has soared. In a field where clinical evidence is sparse, experts are asking how the financial and societal costs of revascularization compare with amputating the problem and whether early detection and treatment could save lives, limbs and perhaps healthcare dollars.

 - heart

Will new rules proposed for donor heart allocation provide a lifeline for the sickest patients or add complexity and cost to a system that struggles to achieve fairness and efficiency?