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MASSIVE QUAKE ROCKS MEXICO: 7.2 Magnitude Hits Near Acapulco

HealthWatch: Bay Area Doctor Helps Alleviate Girl's Food Allergies

10-year-old Tessa Grosso suffered from a dozen food allergies. An experiment by a doctor at Lucile Packard Children's Hospital helped Tessa become desensitized to several of them. Sharon Chin reports.