Sir Richard Doll , a British epidemiologist whose pioneering studies lasting more than 50 years linked smoking to lung cancer , emphysema , heart attacks and many other ailments , died on Sunday in John Radcliffe Hospital in Oxford , England .
Richard Doll
Oxford
/people/deceased_person/place_of_death
Oxford
John Radcliffe Hospital
/location/location/contains
PERSON
Richard Doll
ORGANIZATION
John Radcliffe Hospital
LOCATION
Oxford
LOCATION
England