Lucia Maya remembers getting a phone call from her 21-year-old daughter, Elizabeth. She was in agony.

A creative writing student at the University of Arizona, Elizabeth had been dealing with intense pain in her chest for weeks, along with swelling in her neck and face. The student health clinic told her it was probably bad allergies.

"She called me one day in tears because she was in a lot of pain," Lucia said. "She wasn't one to cry or complain. I said, 'OK, something is clearly wrong.'"

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