[Studies on the safety of toys. 3. Contents of a few harmful metals and extraction of them in "Origami" (colored paper)].
D000965:Antimony / Q000032:analysis; D001151:Arsenic / Q000032:analysis; D002104:Cadmium / Q000032:analysis; D003300:Copper / Q000032:analysis; D007854:Lead / Q000032:analysis; D008670:Metals / Q000032:analysis*; D010209:Paper / Q000032:analysis*; D010988:Play and Playthings; D011048:Polarography
D008670:Metals; D002104:Cadmium; D007854:Lead; D003300:Copper; D000965:Antimony; D001151:Arsenic