We thank Aschner for his positive comments and interesting suggestion regarding a possible influence of manganese on serum prolactin levels.We fully acknowledge that the four elements we studied(de Burbure et al.2006)are probably not the only determinants of serum prolactin levels,especially because variations in blood or urinary levels explained only a few percent of the total variance.Other factors,including perhaps some other metals,most probably also contribute to modulate dopaminergic function and serum prolactin levels.
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