Cite

    K Förster et al.. “3-Hydroxybenzo[a]pyrene in the urine of workers with occupational exposure to polycyclic aromatic hydrocarbons in different industries.” Occupational and environmental medicine, vol. 65, no. 4, 2008, pp. 224–229. http://access.bl.uk/ark:/81055/vdc_100137793012.0x000022