The study was conducted by researchers at Harvard , Massachusetts General Hospital and Beth Israel Deaconess Medical Center in Boston .
Boston /location/location/contains Massachusetts General Hospital
Boston /location/location/contains Beth Israel Deaconess Medical Center
DT NN VBD VBN IN NNS IN NNP , NNP NNP NNP CC NNP NNP NNP NNP NNP IN NNP .
Boston
LOCATION
Massachusetts General Hospital
ORGANIZATION
/location/location/contains
Boston
LOCATION
Beth Israel Deaconess Medical Center
ORGANIZATION
/location/location/contains