Region
Venezuela
159
Investigación
157
Cuba
12
Spain
10
España
7
Latin America
5
Mexico
5
Chile
4
México
4
China
3
United States
3
Angola
2
Argentina
2
CHILE
2
Catalonia
2
Colombia
2
United Arab Emirates
2
Algeria
1
Allemagne
1
Amèrica Latina
1
América Latina
1
Brazil
1
Camagüey (Cuba : Province)
1
Caribbean Area
1
Caribe
1
Costa Rica
1
Czech Republic
1
Germany
1
Germany (West)
1
Italy
1
Japan
1
Malaysia
1
Nigeria
1
Pakistan
1
Piracicaba
1
Research
1
Romania
1
Saudi Arabia
1
Soviet Union
1
URSS
1