[1] Univ Copenhagen, Panum Inst, Inst Forens Med, Lab Biol Anthropol, DK-2200 Copenhagen, Denmark
[2] Natl Museum Denmark, SILA Greenland Res Ctr, DK-1220 Copenhagen, Denmark
[3] Univ Copenhagen, Panum Inst, Inst Odontol, Lab Dent Anthropol, DK-2200 Copenhagen, Denmark
[4] Statens Serum Inst, Danish Epidemiol Ctr, Dept Epidemiol Res, DK-2300 Copenhagen S, Denmark
[5] Natl Museum Nat Hist, Smithsonian Inst, Dept Anthropol, Washington, DC 20560 USA