Godfrey, R., Bayliss, S., Brenton, G., Wright, C., Conlan, S., & Lewis, P. (2009). Detection and visualization of carcinogens in sputum from high risk patients for lung cancer using gas chromatography/mass spectroscopy and atomic force microscopy. MUTAGENESIS, 24(6), p. 547. doi:10.1093/mutage/gep046

Godfrey, Ruth, Sion Bayliss, Gareth Brenton, Chris Wright, Steve Conlan, and Paul Lewis. "Detection and Visualization of Carcinogens in Sputum From High Risk Patients for Lung Cancer Using Gas Chromatography/mass Spectroscopy and Atomic Force Microscopy." MUTAGENESIS 24, no. 6 (2009): 547.

Godfrey, Ruth, et al. "Detection and Visualization of Carcinogens in Sputum From High Risk Patients for Lung Cancer Using Gas Chromatography/mass Spectroscopy and Atomic Force Microscopy." MUTAGENESIS 24.6 (2009): 547.