BACKGROUND As the definitional formula for population attributable fraction is not usually directly usable in applications, separate estimation formulas are required. However, most epidemiology ...

CIPAV, Inabonos-Roullier Group, Poligono Arazuri-Orcoyen, 31160 Orcoyen, Navarra, Spain, and Materials and Surface Science Group, Faculty of Sciences, University of Windsor, Windsor, Ontario, Canada ...