The Hg concentration in femoral bone tissue as a function of the anthropological λ-score. Compact bone tissue samples are indicated with green points and trabecular tissue samples with red points. The one sigma uncertainties of the Hg determinations are indicated as bars. The range λ-values indicating the presence of leprosy is indicated by the line and arrow. The figure shows that none of the individuals suffering from leprosy were medicated with Hg-containing medicine.