title: Exposure to lead: sources and effects.
mesh_terms: D000367:Age Factors; D000818:Animals; D001921:Brain / Q000187:drug effects; D002648:Child; D002675:Child, Preschool; D003864:Depression, Chemical; D004781:Environmental Exposure; D005260:Female; D006418:Heme / Q000096:biosynthesis; D006801:Humans; D007408:Intestinal Absorption; D007854:Lead / Q000633:toxicity; D007855:Lead Poisoning / Q000453:epidemiology / Q000209:etiology; D008297:Male; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D012959:Socioeconomic Factors; D014481:United States
chemical_list: D007854:Lead; D006418:Heme