| Country | Abstracts | Downloads | |
|---|
 | United States | 977 | 1803 | 
 |
 | unknown | 271 | 173 |
|
 | Europe | 54 | 173 |
|
 | Australia | 136 | 165 |
|
 | India | 86 | 148 |
|
 | Spain | 75 | 74 |
|
 | Italy | 41 | 68 |
|
 | United Kingdom | 10 | 48 |
|
 | China | 22 | 28 |
|
 | Argentina | 17 | 27 |
|
 | South Africa | 11 | 26 |
|
 | France | 13 | 26 |
|
 | Canada | 17 | 26 |
|
 | Iran, Islamic Republic of | 18 | 23 |
|
 | Mexico | 10 | 22 |
|
 | Brazil | 16 | 22 |
|
 | Germany | 27 | 21 |
|
 | Hong Kong | 6 | 18 |
|
 | Taiwan, Province of China | 3 | 14 |
|
 | Switzerland | 10 | 14 |
|
 | Indonesia | 3 | 13 |
|
 | Malaysia | 13 | 11 |
|
 | Ethiopia | 2 | 10 |
|
 | Sweden | 6 | 10 |
|
 | Netherlands | 9 | 10 |
|
 | Korea, Republic of | 4 | 9 |
|
 | Turkey | 12 | 9 |
|
 | Japan | 18 | 8 |
|
 | Bosnia and Herzegovina | 0 | 8 |
|
 | Denmark | 1 | 7 |
|
 | Belgium | 2 | 6 |
|
 | Lithuania | 1 | 6 |
|
 | Venezuela | 1 | 6 |
|
 | Pakistan | 1 | 6 |
|
 | Egypt | 3 | 6 |
|
 | Chile | 2 | 6 |
|
 | Portugal | 2 | 5 |
|
 | Israel | 1 | 5 |
|
 | Ukraine | 4 | 5 |
|
 | Philippines | 2 | 5 |
|
 | Thailand | 4 | 5 |
|
 | Romania | 1 | 5 |
|
 | Czech Republic | 8 | 5 |
|
 | Poland | 20 | 4 |
|
 | Yugoslavia | 1 | 4 |
|
 | Norway | 2 | 4 |
|
 | Austria | 8 | 4 |
|
 | Slovakia | 0 | 4 |
|
 | Vietnam | 0 | 4 |
|
 | New Zealand | 0 | 3 |
|
 | Bolivia | 0 | 3 |
|
 | Finland | 3 | 3 |
|
 | Hungary | 1 | 3 |
|
 | Ecuador | 0 | 3 |
|
 | Ireland | 0 | 3 |
|
 | Singapore | 12 | 3 |
|
 | Greece | 2 | 3 |
|
 | Slovenia | 2 | 3 |
|
 | Colombia | 3 | 3 |
|
 | Russian Federation | 5 | 3 |
|
 | Macedonia, the Former Yugoslav Republic of | 0 | 2 |
|
 | United Arab Emirates | 1 | 2 |
|
 | Costa Rica | 1 | 2 |
|
 | Saudi Arabia | 0 | 2 |
|
 | Tanzania, United Republic of | 0 | 2 |
|
 | Croatia | 6 | 2 |
|
 | Puerto Rico | 1 | 2 |
|
 | Mauritius | 0 | 1 |
|
 | Ghana | 0 | 1 |
|
 | Zimbabwe | 0 | 1 |
|
 | Algeria | 1 | 1 |
|
 | Maldives | 0 | 1 |
|
 | Cuba | 2 | 1 |
|
 | Moldova, Republic of | 1 | 1 |
|
 | Sri Lanka | 1 | 1 |
|
 | Panama | 0 | 1 |
|
 | Bahrain | 0 | 1 |
|
 | Nigeria | 0 | 1 |
|
 | Tunisia | 0 | 1 |
|
 | Dominican Republic | 0 | 1 |
|
 | Uruguay | 1 | 1 |
|
 | Greenland | 0 | 1 |
|
 | Peru | 4 | 0 |
|
 | Iceland | 3 | 0 |
|
 | Kuwait | 1 | 0 |
|
 | Nepal | 1 | 0 |
|
 | Malta | 1 | 0 |
|
 | Gambia | 1 | 0 |
|
 | Lebanon | 1 | 0 |
|
 | Luxembourg | 1 | 0 |
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