Cancer Risk Assessment, Indicators, and Guidelines for Polycyclic Aromatic Hydrocarbons in the Ambient Air Boström, Carl-Elis ; Gerde, Per ; Hanberg, Annika ; Jernström, Bengt ; Johansson, Christer ; Kyrklund, Titus ; Rannug, Agneta ; Törnqvist, Margareta ; Victorin, Katarina ; Westerholm, Roger Abstract Publication: Environmental Health Perspectives Pub Date: February 2002 DOI: 10.1289/ehp.02110s3451 Bibcode: 2002EnvHP.110S.451B