When a sick stomach won't go away, a good patient history can help
With his dark hair, burnt-sienna skin, and flashing teeth, he looked like an actor off the set of Lawrence of Arabia. In fact, he was a career military man far from home. Major Ali Al Rahim was a Saudi Arabian pilot assigned to two years of elite training at an air base in southern California. He was pleased with his posting, but he had a problem: unrelenting cramps and diarrhea. "Could it be the food?" he wondered. Some days after lunch he shuttled from flight lab to lavatory nearly every hour...
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