714 studies found for:    Open Studies | "Vitamin B Complex"
714 studies found, shown on map.
A similar map is available for all studies in ClinicalTrials.gov
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 714  
Africa   [map]   32  
Central America   [map]   13  
East Asia   [map]   142  
Japan 25   [studies]
Europe   [map]   210  
Middle East   [map]   33  
North America 313  
Canada   [map]   49   [studies]
Mexico 12   [studies]
United States   [map]   292   [studies]
North Asia   [map]   18  
Pacifica   [map]   29  
South America   [map]   22  
South Asia   [map]   21  
Southeast Asia   [map]   24  

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.