Country * % * Psy-Neurol **
(%)		 SGAs
(%)		 SGAs/Psy-Neurol  
1 USA 25.78 35.61 31.84 1.14
2 UK 7.36 9.92 7.97 1.01
3 Japan 6.62 6.82 3.27 0.61
4 Germany 6.30 7.93 6.33 1.02
5 France 4.55 4.93 3.46 0.89
6 China 3.95 2.90 2.00 0.88
7 Italy 3.87 4.76 4.59 1.23
8 Canada 3.67 5.03 5.68 1.44
9 Spain 2.69 2.90 3.93 1.73
10 Australia 2.47 3.07 2.69 1.12
  Hong Kong 0.47 0.46 0.23 0.65
Psy-Neurol, area of focus in Neurology and Psychiatry; SGAs, second-generation antipsychotic drugs.
* The world’s top 10 most productive countries in biomedicine and health sciences for the period 1993-2011.
** The “productivity” in the discipline of Psychiatry and Neurology.
Total documents 1993-2011: 13,746,667
Total documents in Neurology & Psychiatry Area 1993-2011: 1,471,156
Table 4: Distribution of literature on second-generation antipsychotic drugs from
the world’s top 10 most productive countries in biomedicine and health sciences
compared to Hong Kong for the study period (1993-2011).
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