de Mheen, P. J. M., Shipley, M., Witteman, J., Marmot, M., & Gunning-Schepers, L. (2001). Decline of the relative risk of death associated with low employment grade at older age: The impact of age related differences in smoking, blood pressure and plasma cholesterol. BMJ Group.

de Mheen, P J M.-v., M. Shipley, J. Witteman, M. Marmot, και L. Gunning-Schepers. Decline of the Relative Risk of Death Associated With Low Employment Grade At Older Age: The Impact of Age Related Differences in Smoking, Blood Pressure and Plasma Cholesterol. BMJ Group, 2001.

de Mheen, P J M.-v., et al. Decline of the Relative Risk of Death Associated With Low Employment Grade At Older Age: The Impact of Age Related Differences in Smoking, Blood Pressure and Plasma Cholesterol. BMJ Group, 2001.