| Country | Abstracts | Downloads | |
|---|
 | United States | 609 | 502 | 
 |
 | India | 131 | 235 |
|
 | Australia | 160 | 155 |
|
 | Europe | 26 | 59 |
|
 | unknown | 223 | 49 |
|
 | Iran, Islamic Republic of | 4 | 39 |
|
 | United Kingdom | 31 | 31 |
|
 | Hong Kong | 10 | 21 |
|
 | China | 9 | 19 |
|
 | Spain | 19 | 17 |
|
 | South Africa | 7 | 14 |
|
 | Turkey | 4 | 13 |
|
 | Germany | 5 | 12 |
|
 | Taiwan, Province of China | 3 | 11 |
|
 | Greece | 2 | 11 |
|
 | Pakistan | 6 | 11 |
|
 | Egypt | 5 | 11 |
|
 | Brazil | 6 | 10 |
|
 | Russian Federation | 4 | 10 |
|
 | Mexico | 4 | 9 |
|
 | Canada | 9 | 9 |
|
 | France | 4 | 8 |
|
 | Italy | 10 | 8 |
|
 | Indonesia | 1 | 8 |
|
 | Ethiopia | 1 | 7 |
|
 | Singapore | 3 | 7 |
|
 | United Arab Emirates | 5 | 7 |
|
 | Austria | 4 | 7 |
|
 | Japan | 7 | 7 |
|
 | Algeria | 0 | 6 |
|
 | Vietnam | 1 | 5 |
|
 | Thailand | 2 | 5 |
|
 | Chile | 3 | 4 |
|
 | Argentina | 2 | 4 |
|
 | Lithuania | 3 | 4 |
|
 | Yugoslavia | 0 | 4 |
|
 | Nigeria | 2 | 3 |
|
 | Saudi Arabia | 1 | 3 |
|
 | Belgium | 1 | 3 |
|
 | Bangladesh | 0 | 3 |
|
 | Switzerland | 7 | 3 |
|
 | Portugal | 0 | 2 |
|
 | Libyan Arab Jamahiriya | 0 | 2 |
|
 | Myanmar | 0 | 2 |
|
 | Peru | 1 | 2 |
|
 | Colombia | 0 | 2 |
|
 | Philippines | 1 | 2 |
|
 | Ukraine | 0 | 2 |
|
 | Romania | 1 | 2 |
|
 | Israel | 1 | 2 |
|
 | Zimbabwe | 2 | 2 |
|
 | Korea, Republic of | 1 | 2 |
|
 | Kuwait | 1 | 2 |
|
 | Sweden | 8 | 2 |
|
 | Finland | 0 | 1 |
|
 | Bahrain | 0 | 1 |
|
 | Croatia | 2 | 1 |
|
 | Tunisia | 0 | 1 |
|
 | Gambia | 0 | 1 |
|
 | Cyprus | 0 | 1 |
|
 | Armenia | 1 | 1 |
|
 | Malta | 0 | 1 |
|
 | Slovenia | 0 | 1 |
|
 | Sri Lanka | 0 | 1 |
|
 | Latvia | 2 | 1 |
|
 | Tanzania, United Republic of | 0 | 1 |
|
 | Hungary | 0 | 1 |
|
 | Denmark | 0 | 1 |
|
 | Czech Republic | 2 | 1 |
|
 | Jordan | 1 | 1 |
|
 | Syrian Arab Republic | 0 | 1 |
|
 | Bhutan | 0 | 1 |
|
 | Macedonia, the Former Yugoslav Republic of | 0 | 1 |
|
 | Netherlands | 8 | 0 |
|
 | Malaysia | 2 | 0 |
|
 | Uruguay | 2 | 0 |
|
 | Samoa | 1 | 0 |
|
 | Poland | 1 | 0 |
|
 | Cuba | 1 | 0 |
|
 | Iceland | 1 | 0 |
|
 | Ecuador | 1 | 0 |
|
 | Kenya | 1 | 0 |
|
 | Bulgaria | 1 | 0 |
|
 | New Zealand | 1 | 0 |
|
