He trained generations of surgeons at the Baylor College of Medicine ; operated on more than 60,000 patients ; and in 1996 was summoned to Moscow by Boris Yeltsin , then the president of Russia , to aid in his quintuple heart bypass operation .
Moscow
Russia
/location/administrative_division/country
Russia
Moscow
/location/country/administrative_divisions
Russia
Moscow
/location/location/contains
Boris Yeltsin
Russia
/people/person/nationality
Boris Yeltsin
Moscow
/people/deceased_person/place_of_death
Russia
Moscow
/location/country/capital
ORGANIZATION
Baylor College of Medicine
LOCATION
Moscow
PERSON
Boris Yeltsin
LOCATION
Russia