Biomonitoring of polycyclic aromatic hydrocarbons in firefighters at fire training facilities and in employees at respiratory protection and hose workshops oleh Stephan Koslitz, Birgit Heinrich, Heiko U. Käfferlein, Holger M. Koch, Tim Pelzl, Katrin Pitzke, Daniel Köster, Tobias Weiß, Volker Harth, Thomas Brüning, Thomas Behrens, Dirk Taeger