Blood Pressure and Same-Day Exposure to Air Pollution at School: Associations with Nano-Sized to Coarse PM in Children. - Pieters, Nicky; Koppen, Gudrun; Van Poppel, Martine; De Prins, Sofie; Cox, Bianca; Dons, Evi; Nelen, Vera; Panis, Luc Int; Plusquin, Michelle; Schoeters, Greet; Nawrot, Tim S. (Environmental Health Perspectives, 2015)