Business 101: Must Apple discuss CEO Jobs' health?

(AP) -- This week, Apple Inc. wasn't shy about touting the sales of its latest mobile device. But the company didn't say anything confirming reports from over the weekend that co-founder and CEO Steve Jobs had a liver transplant ...

Purifying cells to treat disease

Various cell therapies involve injecting a specific cell type into a patient. These include, for example, bone marrow transplants and some types of immunotherapy that use T-cells (a white blood cell involved in immunity) ...

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