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About midnight one evening in 2008, I began to enjoy a late-night snack — a granola bar. After several bites, my lips and mouth seemed itchy and began to swell. Realizing I was reacting to something in the granola, I immediately stopped eating it, but the allergic reaction only worsened.
Reluctantly, I dialed 911, explaining to the dispatcher that I was reacting violently to something I was eating, and needed help. She asked me to unlock my front door. I crossed my living room, unlatched the door, and seconds later passed out…

