title: Gleaning nuggets.
authors: P
authors: P
authors: Morrison
authors: P
authors: P
authors: Morrison
mesh_terms: D003300:Copper / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D006801:Humans; D007198:Indians, North American; D008800:Mexico; D008824:Michigan; D012834:Silver / Q000737:chemistry*
chemical_list: D012834:Silver; D006046:Gold; D003300:Copper