title: Thallium poisoning in Guyana--a national crisis.
mesh_terms: D000818:Animals; D006172:Guyana; D006801:Humans; D012378:Rodenticides / Q000506:poisoning*; D013793:Thallium / Q000506:poisoning*
chemical_list: D012378:Rodenticides; D013793:Thallium; C013707:thallium sulfate