If the safety of the student athlete is paramount, it seems better to simply demand the testing, not just for sickle cell but other life-threatening genetic markers.

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In non-small cell lung cancer, for instance, the tissue samples needed to identify these genetic markers are not routinely taken for practical reasons, says Mark Kris , an oncologist at Memorial Sloan-Kettering Hospital in New York who has worked with Iressa and with OSI's Tarceva.

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