What we 're trying to do is reconcile why there is such a disconnect , or paradox , between the observational trials and the randomized controlled trials , '' said Dr. Isaac Schiff , chief of obstetrics and gynecology at Massachusetts General Hospital in Boston and chairman of a report on hormone therapy for the American College of Obstetricians and Gynecologists .
Boston /location/location/contains Massachusetts General Hospital
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Boston
LOCATION
Massachusetts General Hospital
ORGANIZATION
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