[Fraternal cooperation among socialist countries].
D003148:Communism; D003462:Cuba; D005061:Europe, Eastern; D007390:International Agencies / Q000639:trends*; D007391:International Cooperation; D008986:Mongolia; D011635:Public Health Administration / Q000639:trends*; D014744:Vietnam
Bratskoe sotrudnichestvo sotsialisticheskikh stran.