| University of Maine |
Orono |
Maine |
United States |
| University of Kentucky |
Lexington |
Kentucky |
United States |
| University of Kansas |
Lawrence |
Kansas |
United States |
| University of Iowa |
Iowa City |
Iowa |
United States |
| University of Illinois at Urbana Champaign |
Urbana |
Illinois |
United States |
| University of Illinois at Chicago (Dept of Chemistry) |
Chicago |
Illinois |
United States |
| University of Idaho |
Moscow |
Idaho |
United States |
| University of Hawai'i |
Honolulu |
Hawaii |
United States |
| University of Georgia |
Athens |
Georgia |
United States |
| University of Delaware |
Newark |
Delaware |
United States |
| University of Connecticut |
Storrs |
Connecticut |
United States |
| University of Colorado Boulder |
Boulder |
Colorado |
United States |
| University of California, Santa Cruz |
Santa Cruz |
California |
United States |
| University of California, Santa Barbara |
Santa Barbara |
CA 93106 |
United States |
| University of California, San Diego |
San Diego |
California |
United States |
| University of California, Riverside |
Riverside |
California |
United States |
| University of California, Merced |
Merced |
California |
United States |
| University of California, Irvine |
Irvine |
California |
United States |
| University of California, Davis |
Davis |
California |
United States |
| University of California, Berkeley |
Berkeley |
California |
United States |
| University of Arizona |
Tucson |
Arizona |
United States |
| University of Alabama at Birmingham |
Birmingham |
Alabama |
United States |
| University of Akron |
Akron |
Ohio |
United States |
| United States Geological Survey |
Reston |
Virginia |
United States |
| United States Department of Agriculture, Agricultural Research Service |
Ames |
Iowa |
United States |