Fig. 1From: Reconstruction of human exposure to heavy metals using synchrotron radiation microbeams in prehistoric and modern humansAnatomy of a tooth and two-dimensional distributions of Ca and Zn by SRXRF. a Anatomy of a tooth by horizontal section. b Distribution of Ca by SRXRF. c Distribution of Zn by SRXRF. Relative signal intensities were expressed in gradient colorsBack to article page