| Country | Abstracts | Downloads | |
|---|
 | United States | 337 | 132 | 
 |
 | Canada | 9 | 18 |
|
 | Australia | 42 | 16 |
|
 | United Kingdom | 44 | 12 |
|
 | Hong Kong | 6 | 4 |
|
 | Spain | 3 | 4 |
|
 | unknown | 19 | 4 |
|
 | South Africa | 3 | 3 |
|
 | Israel | 2 | 2 |
|
 | Austria | 5 | 2 |
|
 | Portugal | 2 | 2 |
|
 | New Zealand | 0 | 2 |
|
 | Tanzania, United Republic of | 4 | 2 |
|
 | France | 0 | 2 |
|
 | Taiwan, Province of China | 2 | 2 |
|
 | Yugoslavia | 0 | 2 |
|
 | Greece | 0 | 2 |
|
 | Netherlands | 0 | 2 |
|
 | Europe | 13 | 2 |
|
 | Germany | 3 | 1 |
|
 | Ireland | 1 | 1 |
|
 | Colombia | 0 | 1 |
|
 | Brazil | 1 | 1 |
|
 | Latvia | 1 | 1 |
|
 | Slovakia | 0 | 1 |
|
 | Russian Federation | 2 | 1 |
|
 | Switzerland | 2 | 1 |
|
 | Denmark | 1 | 1 |
|
 | Singapore | 5 | 1 |
|
 | Sweden | 0 | 1 |
|
 | Vietnam | 0 | 1 |
|
 | India | 7 | 0 |
|
 | China | 6 | 0 |
|
 | Pakistan | 3 | 0 |
|
 | Indonesia | 3 | 0 |
|
 | Italy | 3 | 0 |
|
 | Croatia | 2 | 0 |
|
 | United Arab Emirates | 2 | 0 |
|
 | Kenya | 1 | 0 |
|
 | Thailand | 1 | 0 |
|
 | Philippines | 1 | 0 |
|
 | Malaysia | 1 | 0 |
|
 | Zimbabwe | 1 | 0 |
|
 | Finland | 1 | 0 |
|
 | Puerto Rico | 1 | 0 |
|
 | Czech Republic | 1 | 0 |
|
 | Iran, Islamic Republic of | 1 | 0 |
|
 | Japan | 1 | 0 |
|
