| Country | Abstracts | Downloads | |
|---|
 | United States | 590 | 270 | 
 |
 | Australia | 134 | 75 |
|
 | Sri Lanka | 38 | 60 |
|
 | India | 51 | 42 |
|
 | United Kingdom | 40 | 32 |
|
 | unknown | 141 | 32 |
|
 | Europe | 32 | 30 |
|
 | South Africa | 31 | 25 |
|
 | Iran, Islamic Republic of | 18 | 14 |
|
 | Spain | 22 | 11 |
|
 | Hong Kong | 11 | 10 |
|
 | Greece | 15 | 9 |
|
 | Canada | 24 | 8 |
|
 | Kenya | 8 | 7 |
|
 | Thailand | 7 | 7 |
|
 | Taiwan, Province of China | 5 | 6 |
|
 | New Zealand | 7 | 6 |
|
 | Singapore | 3 | 6 |
|
 | China | 9 | 5 |
|
 | United Arab Emirates | 4 | 5 |
|
 | Portugal | 3 | 5 |
|
 | Switzerland | 11 | 5 |
|
 | Philippines | 11 | 5 |
|
 | Russian Federation | 2 | 4 |
|
 | Indonesia | 4 | 4 |
|
 | Brazil | 6 | 4 |
|
 | Tanzania, United Republic of | 7 | 4 |
|
 | Malta | 4 | 3 |
|
 | Mexico | 7 | 3 |
|
 | Jordan | 5 | 3 |
|
 | France | 2 | 3 |
|
 | Pakistan | 2 | 3 |
|
 | Turkey | 7 | 3 |
|
 | Lithuania | 3 | 3 |
|
 | Puerto Rico | 2 | 2 |
|
 | Germany | 3 | 2 |
|
 | Denmark | 0 | 2 |
|
 | Sweden | 8 | 2 |
|
 | Malaysia | 10 | 2 |
|
 | Ethiopia | 3 | 2 |
|
 | Argentina | 3 | 2 |
|
 | Italy | 10 | 2 |
|
 | Venezuela | 1 | 2 |
|
 | Netherlands | 3 | 1 |
|
 | Ireland | 5 | 1 |
|
 | Poland | 2 | 1 |
|
 | Kyrgyzstan | 0 | 1 |
|
 | Romania | 0 | 1 |
|
 | Sudan | 0 | 1 |
|
 | Estonia | 3 | 1 |
|
 | Cyprus | 2 | 1 |
|
 | Bangladesh | 1 | 1 |
|
 | Colombia | 2 | 1 |
|
 | Bulgaria | 2 | 1 |
|
 | Slovakia | 0 | 1 |
|
 | Zimbabwe | 13 | 1 |
|
 | Egypt | 2 | 1 |
|
 | Israel | 4 | 1 |
|
 | Kuwait | 3 | 1 |
|
 | Macedonia, the Former Yugoslav Republic of | 0 | 1 |
|
 | Jamaica | 3 | 1 |
|
 | Namibia | 1 | 1 |
|
 | Yugoslavia | 3 | 0 |
|
 | Saudi Arabia | 2 | 0 |
|
 | Cuba | 2 | 0 |
|
 | Norway | 2 | 0 |
|
 | Japan | 2 | 0 |
|
 | Austria | 1 | 0 |
|
 | Korea, Republic of | 1 | 0 |
|
 | Belgium | 1 | 0 |
|
 | Senegal | 1 | 0 |
|
 | Nigeria | 1 | 0 |
|
 | Nepal | 1 | 0 |
|
 | Chile | 1 | 0 |
|
 | Trinidad and Tobago | 1 | 0 |
|
 | Vietnam | 1 | 0 |
|
 | Latvia | 1 | 0 |
|
 | Bahrain | 1 | 0 |
|
 | Uganda | 1 | 0 |
|
 | Saint Lucia | 1 | 0 |
|
 | Mauritius | 1 | 0 |
|
 | Myanmar | 1 | 0 |
|
 | Croatia | 1 | 0 |
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