COVID-19 is an emerging, rapidly evolving situation.
Get the latest public health information from CDC:

Get the latest research information from NIH: Menu
Open or close the search fields display
363 Studies found for: ASPIRIN AND clopidogrel AND Purinergic Antagonists

A similar map is available for all studies in

Click on the map below to show a more detailed map (when available) or search for studies (when map not available).

Map Legend
Region Name Number of Studies
World 363
Africa [map] 11
Central America [map] 5
East Asia [map] 120
Japan 12 [studies]
Europe [map] 119
Middle East [map] 17
North America 120
Canada [map] 43 [studies]
Mexico 15 [studies]
United States [map] 99 [studies]
North Asia [map] 15
Pacifica [map] 23
South America [map] 24
South Asia [map] 7
Southeast Asia [map] 16

Click on a [map] link to show a map of that region.

Click on a [studies] link to search within your current results for studies in that region. Use the back button to return to this list and try another region.

Studies with no locations are not included in the counts or on the map.

Studies with multiple locations are included in each region containing locations.