| Country | Abstracts | Downloads | |
|---|
 | United States | 825 | 2253 | 
 |
 | Australia | 152 | 239 |
|
 | unknown | 217 | 216 |
|
 | Canada | 38 | 144 |
|
 | India | 38 | 104 |
|
 | United Kingdom | 17 | 93 |
|
 | Europe | 38 | 90 |
|
 | China | 34 | 62 |
|
 | Spain | 53 | 54 |
|
 | Korea, Republic of | 7 | 51 |
|
 | New Zealand | 12 | 37 |
|
 | Germany | 13 | 32 |
|
 | Iran, Islamic Republic of | 12 | 27 |
|
 | Taiwan, Province of China | 12 | 25 |
|
 | Netherlands | 10 | 22 |
|
 | Turkey | 19 | 22 |
|
 | Italy | 22 | 21 |
|
 | France | 11 | 20 |
|
 | Switzerland | 17 | 20 |
|
 | Thailand | 1 | 19 |
|
 | Brazil | 16 | 17 |
|
 | Greece | 6 | 17 |
|
 | Singapore | 3 | 16 |
|
 | Indonesia | 2 | 16 |
|
 | Mexico | 17 | 15 |
|
 | Denmark | 1 | 13 |
|
 | Russian Federation | 11 | 13 |
|
 | Portugal | 3 | 11 |
|
 | South Africa | 9 | 11 |
|
 | Egypt | 1 | 11 |
|
 | Japan | 8 | 11 |
|
 | Sweden | 6 | 11 |
|
 | Ireland | 2 | 10 |
|
 | Argentina | 8 | 10 |
|
 | Belgium | 3 | 9 |
|
 | Puerto Rico | 3 | 9 |
|
 | Norway | 6 | 9 |
|
 | Austria | 2 | 8 |
|
 | United Arab Emirates | 1 | 8 |
|
 | Vietnam | 2 | 7 |
|
 | Israel | 3 | 7 |
|
 | Saudi Arabia | 4 | 7 |
|
 | Hong Kong | 2 | 7 |
|
 | Kuwait | 1 | 6 |
|
 | Pakistan | 0 | 6 |
|
 | Malaysia | 5 | 6 |
|
 | Slovakia | 2 | 5 |
|
 | Finland | 4 | 4 |
|
 | Virgin Islands, U.S. | 0 | 4 |
|
 | Poland | 9 | 4 |
|
 | Colombia | 3 | 3 |
|
 | Philippines | 1 | 3 |
|
 | Iceland | 1 | 3 |
|
 | Cuba | 0 | 3 |
|
 | Luxembourg | 3 | 3 |
|
 | Yugoslavia | 1 | 3 |
|
 | Ethiopia | 1 | 3 |
|
 | Ukraine | 1 | 3 |
|
 | Uruguay | 2 | 3 |
|
 | Chile | 2 | 2 |
|
 | Trinidad and Tobago | 0 | 2 |
|
 | Croatia | 2 | 2 |
|
 | Georgia | 1 | 2 |
|
 | Lithuania | 3 | 2 |
|
 | Lebanon | 1 | 2 |
|
 | Nepal | 0 | 2 |
|
 | Czech Republic | 1 | 2 |
|
 | Latvia | 0 | 2 |
|
 | Libyan Arab Jamahiriya | 0 | 2 |
|
 | Hungary | 2 | 1 |
|
 | Jamaica | 0 | 1 |
|
 | El Salvador | 0 | 1 |
|
 | Barbados | 0 | 1 |
|
 | Syrian Arab Republic | 0 | 1 |
|
 | Bermuda | 0 | 1 |
|
 | Tunisia | 1 | 1 |
|
 | Algeria | 2 | 1 |
|
 | Estonia | 0 | 1 |
|
 | Senegal | 0 | 1 |
|
 | Monaco | 0 | 1 |
|
 | Macedonia, the Former Yugoslav Republic of | 0 | 1 |
|
 | Panama | 0 | 1 |
|
 | Sudan | 2 | 0 |
|
 | Sri Lanka | 2 | 0 |
|
 | Malta | 1 | 0 |
|
 | Cayman Islands | 1 | 0 |
|
 | Bahrain | 1 | 0 |
|
 | Peru | 1 | 0 |
|
 | Bolivia | 1 | 0 |
|
 | Bangladesh | 1 | 0 |
|
 | Romania | 1 | 0 |
|
 | Kyrgyzstan | 1 | 0 |
|
 | Kenya | 1 | 0 |
|
