Region
United States
6
États-Unis
3
Boston
1
Boston (Mass.)
1
California
1
Massachusetts
1
New York
1
New York (N.Y.)
1
New York (State)
1
North Philadelphia
1
North Philadelphia (Philadelphia, Pa.)
1
Palo Alto
1
Palo Alto (Calif.)
1
Pennsylvania
1
Philadelphia
1
Reston
1
Reston (Va.)
1
Stanford
1
Stanford (Calif.)
1
Verenigde Staten
1
Virginia
1