But analysts expect that most of us will gravitate to the big systems, just as we have moved away from small pharmacies to CVS and Walmart.

NEWYORKER: Big Med

There are other clinical studies of Souvenaid going on of 500 participants each, and the company plans to do an "early experience program" of selling the product in a small geographic area in the United States, having it available in pharmacies, he said.

CNN: Nutritional drink, imaging show promise for Alzheimer's