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The Centers for Medicare & Medicaid Services is proposing regulations to control selling tactics used by Medicare Advantage and Part D plans to attract new customers.

Gut hormones play a key and often overlooked role in weight loss and weight regulation. Changes in weight are determined largely by the balance between energy intake and energy expenditure, but gut hormones can affect both sides of the energy equation.

The range of endothelial interventions for peripheral artery disease (PAD) is proliferating. Today's choices include traditional balloon angioplasty, stents, drug eluting stents and fabric-covered stents. Newer technologies allow clinicians to cut out occlusions, freeze them, scrape them, laser them and kill them.