Airborne exposure and biological monitoring of bar and restaurant workers before and after the introduction of a smoking ban

Ellingsen DG, Fladseth G, Daae HL, Gjolstad M, Kjaerheim K, Skogstad M, Olsen R, Thorud S, Molander P. Airborne exposure and biological monitoring of bar and restaurant workers before and after the introduction of a smoking ban. J Environ Monit 2006; 8(3):362-368.