Region
New York (NY)
6
Cold Spring Harbor (NY)
2
Baltimore (Md.)
1
Claremont (Calif.)
1
Groningen
1
Jerusalem
1
Kettwig
1
Keystone (Colo.)
1
Newark (NJ)
1
Prag
1
Reno (Nev.)
1
Rotterdam
1
Saint Louis (Mich.)
1
San Diego (Calif.)
1
Santa Barbara (Calif.)
1
Sendai
1
Stockholm
1
Tel Aviv- Jaffa
1
Turin
1
Urbana (Ill.)
1
Washington (DC)
1