AARON GOODMAN 68 2008. 02
sa.ylib.com 69
59% COURTESY OF ANNA FAGIN (Fagin); LUCY READING-IKKANDA (map and graph); MOODBOARD/CORBIS (paper clip) 70 2008. 02
sa.ylib.com 71 ANDREW SWIFT (teeth); LUCY READING-IKKANDA (graph)
ANDREW SWIFT 72 2008. 02
sa.ylib.com 73 STEVEN M. LEVY University of Iowa
3.73 ppm 2.34 ppm 2.02 ppm 1.09 ppm 0.91 ppm 0.71 ppm 0.61 ppm 0.60 ppm 0.48 ppm 0.46 ppm 0.45 ppm 0.45 ppm 0.35 ppm 0.33 ppm 0.32 ppm 0.23 ppm 0.13 ppm 0.03 ppm DAVID ROSENBERG Getty Images (hot dog); IMAGE SOURCE PINK/GETTY IMAGES (raisins); JONATHAN KITCHEN Getty Images (beer); C SQUARED STUDIOS/GETTY IMAGES (ice cream) 74 2008. 02
Patterns of Fluoride Intake from Birth to 36 Months. Steven M. Levy, John J. Warren, Charles S. Davis, H. Lester Kirchner, Michael J. Kanellis and James S. Wefel in Journal of Public Health Dentistry, Vol. 61, No. 2, pages 70 77; June 2001. Patterns of Fluoride Intake from 36 to 72 Months of Age. Steven M. Levy, John J. Warren and Barbara Broffitt in Journal of Public Health Dentistry, Vol. 63, No. 4, pages 211 220; December 2003. BETTMANN/CORBIS Timing of Fluoride Intake in Relation to Development of Fluorosis on Maxillary Central Incisors. Liang Hong, Steven M. Levy, Barbara Broffitt, John J. Warren, Michael J. Kanellis, James S. Wefel and Deborah V. Dawson in Community Dentistry and Oral Epidemiology, Vol. 34, No. 4, pages 299 309; August 2006. Age-Specific Fluoride Exposure in Drinking Water and Osteosarcoma. Elise B. Bassin, David Wypij, Roger B. Davis and Murray A. Mittleman in Cancer Causes and Control, Vol. 17, No. 4, pages 421 428; May 2006. Caution Needed in Fluoride and Osteosarcoma Study. Chester W. Douglass and Kaumudi Joshipura in Cancer Causes and Control, Vol. 17, No. 4, pages 481 482; May 2006. Fluoride in Drinking Water: A Scientific Review of EPA s Standards. National Academy of Sciences, 2006. www.nap.edu/catalog. php?record_id=11571 sa.ylib.com 75