Simmons, V. N., Litvin, E. B., Jacobsen, P. B., Patel, R., McCaffrey, J., Oliver, J. A., … Brandon, T. H. (n.d.). Predictors of smoking relapse in thoracic and head and neck cancer patients. Cancer, 119, 1420–1427.

Simmons, V. N., E. B. Litvin, P. B. Jacobsen, R. Patel, J. McCaffrey, J. A. Oliver, S. K. Sutton, and T. H. Brandon. “Predictors of smoking relapse in thoracic and head and neck cancer patients.” Cancer 119 (n.d.): 1420–27.

Simmons VN, Litvin EB, Jacobsen PB, Patel R, McCaffrey J, Oliver JA, et al. Predictors of smoking relapse in thoracic and head and neck cancer patients. Cancer. 119:1420–7.

Simmons, V. N., et al. “Predictors of smoking relapse in thoracic and head and neck cancer patients.” Cancer, vol. 119, pp. 1420–27.

Simmons VN, Litvin EB, Jacobsen PB, Patel R, McCaffrey J, Oliver JA, Sutton SK, Brandon TH. Predictors of smoking relapse in thoracic and head and neck cancer patients. Cancer. 119:1420–1427.