Color Oganizations Represented By That Color
The organizations highlighted with "yellow markers" are all federal agencies such as the National Institutes of health.
Describes what is represented by green markers The green markers indicate state agencies such as the Maryland State Department of Health and Mental Hygiene.
"Red" indicates Universities such as the University of Maryland School of Public Health in College Park
Private sector organizations are indicated with "blue" markers.  These include both for-profit and not-for-profit organizations.
The organizations highlighted with "purple markers" are international organizations such as the Pan American Health Organization.