1. Tom’s of Maine, 302 Lafayette
Center, Kennebunk, Maine 04043, United States
2. Department
of Chemistry, University of Iowa, Iowa City, Iowa 52242, United States
3. Department
of Pharmacognosy and the Research Institute of Pharmaceutical Sciences,
School of Pharmacy, University of Mississippi, University, Mississippi 38677, United States
4. Groupe
de Recherche en Écologie Buccale, Faculté de Médecine
Dentaire, Université Laval, Quebec City, Quebec G1V 0A6, Canada
5. American Botanical Council, Austin, Texas 78714, United States