1. Department
of Environmental Health, Harvard School of Public Health, 401
Park Drive, Boston, Massachusetts 02215, United States
2. Department
of Earth and Environmental Sciences, University of Michigan, 1100 North
University Avenue, Ann Arbor, Michigan 48109, United States
3. Institute
of Public Health, University of Southern Denmark, J. B. Winsløws
Vej 9B, 2nd floor, DK-5000 Odense C, Denmark
4. The Faroese Museum of Natural History, V. U. Hammershaimbsgøta 13, FO-100 Tórshavn, Faroe Islands
5. Department
of Occupational Medicine and Public Health, The Faroese Hospital System, Sigmundargøta 5, 100 Tórshavn, Faroe Islands
6. School of
Engineering and Applied Sciences, Harvard University, 29 Oxford
Street, Cambridge, Massachusetts 02138, United States