| Country | Abstracts | Downloads | |
|---|
 | United States | 311 | 115 | 
 |
 | unknown | 32 | 13 |
|
 | Australia | 72 | 11 |
|
 | Canada | 17 | 6 |
|
 | China | 21 | 6 |
|
 | United Kingdom | 14 | 6 |
|
 | Romania | 4 | 5 |
|
 | India | 9 | 5 |
|
 | Europe | 11 | 5 |
|
 | Spain | 11 | 5 |
|
 | Iran, Islamic Republic of | 5 | 5 |
|
 | New Zealand | 4 | 4 |
|
 | Turkey | 7 | 4 |
|
 | Greece | 5 | 3 |
|
 | Mexico | 6 | 2 |
|
 | Finland | 4 | 2 |
|
 | Italy | 4 | 2 |
|
 | Malaysia | 4 | 2 |
|
 | Slovenia | 1 | 1 |
|
 | Taiwan, Province of China | 6 | 1 |
|
 | Portugal | 3 | 1 |
|
 | Zimbabwe | 4 | 1 |
|
 | Sri Lanka | 2 | 1 |
|
 | Vietnam | 0 | 1 |
|
 | South Africa | 8 | 1 |
|
 | Colombia | 1 | 1 |
|
 | Peru | 4 | 1 |
|
 | Jordan | 0 | 1 |
|
 | Israel | 2 | 1 |
|
 | Brazil | 2 | 1 |
|
 | Hong Kong | 3 | 1 |
|
 | Argentina | 0 | 1 |
|
 | Luxembourg | 1 | 1 |
|
 | Indonesia | 3 | 1 |
|
 | Mauritius | 2 | 1 |
|
 | Cook Islands | 0 | 1 |
|
 | Thailand | 3 | 1 |
|
 | Russian Federation | 2 | 1 |
|
 | Poland | 5 | 1 |
|
 | Ethiopia | 6 | 0 |
|
 | Cyprus | 5 | 0 |
|
 | Philippines | 4 | 0 |
|
 | Germany | 4 | 0 |
|
 | Singapore | 4 | 0 |
|
 | Ireland | 3 | 0 |
|
 | Japan | 2 | 0 |
|
 | Norway | 2 | 0 |
|
 | Netherlands | 2 | 0 |
|
 | United Arab Emirates | 1 | 0 |
|
 | Tanzania, United Republic of | 1 | 0 |
|
 | Estonia | 1 | 0 |
|
 | Czech Republic | 1 | 0 |
|
 | Bulgaria | 1 | 0 |
|
 | Sweden | 1 | 0 |
|
 | Switzerland | 1 | 0 |
|
 | Belgium | 1 | 0 |
|
 | Korea, Republic of | 1 | 0 |
|
 | Puerto Rico | 1 | 0 |
|
 | Kenya | 1 | 0 |
|
 | Austria | 1 | 0 |
|
