Authors: Pattenden, S Armstrong, BG Houthuijs, D Leonardi, GS Dusseldorp, A Boeva, B Hruba, F Brunekreef, B Fletcher, T

Citation: S. Pattenden et al., Methodological approaches to the analysis of hierarchical studies of air pollution and respiratory health - examples from the CESAR study, J EXP AN EN, 10(5), 2000, pp. 420-426