Socialism in one country.
D035843:Biomedical Research / Q000191:economics / Q000592:standards / Q000639:trends; D003462:Cuba; D004641:Emigration and Immigration / Q000331:legislation & jurisprudence; D006806:Human Rights / Q000331:legislation & jurisprudence; D006801:Humans; D007391:International Cooperation; D007449:Investments; D012108:Research Personnel / Q000193:education / Q000331:legislation & jurisprudence* / Q000592:standards; D012586:Science / Q000191:economics* / Q000592:standards / Q000639:trends*; D012950:Socialism; D014481:United States