This summary was prepared by Philip J. Landrigan, MD. Dr. Landrigan is a physician board-certified in Occupational and Environmental Medicine as well as in Pediatrics and Preventive Medicine. He served previously as Director of the Division of Surveillance, Hazard Evaluations and Field Studies in the National Institute for Occupational Safety & Health (NIOSH). He is now a Professor at Boston College where he directs the Program for Global Public Health and the Common Good.