Lead content of printed media (warning: spitballs may be hazardous to your health).
D000397:Air Pollution; D001877:Books; D002648:Child; D003116:Color; D004781:Environmental Exposure; D004787:Environmental Pollution; D005390:Fires; D006801:Humans; D007854:Lead / Q000032:analysis*; D007855:Lead Poisoning / Q000209:etiology*; D008409:Mastication; D008452:Maximum Allowable Concentration; D009519:New York City; D009524:Newspapers as Topic; D010506:Periodicals as Topic; D010842:Pica / Q000150:complications; D011327:Printing; D012037:Refuse Disposal
D007854:Lead