Ms. Castro , 34 , a financial analyst in the Encino section of Los Angeles , had the kind of unexplained back pain that afflicts at least 70 percent of Americans at some point in their lives .
Encino /location/neighborhood/neighborhood_of Los Angeles
Los Angeles /location/location/contains Encino
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Encino
LOCATION
Los Angeles
LOCATION
/location/neighborhood/neighborhood_of
Los Angeles
LOCATION
Encino
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