Bernabei R., Gambassi G., Lapane K., Landi F., Gatsonis C., Dunlop R., Lipsitz L., Steel K., Mor V..  1998.  Management of pain in elderly patients with cancer. SAGE Study Group. Systematic Assessment of Geriatric Drug Use via Epidemiology. Jama. 279(23):1877-82.

Onder G., Liperoti R., Soldato M., Carpenter I., Steel K., Bernabei R., Landi F..  2007.  Case management and risk of nursing home admission for older adults in home care: results of the AgeD in HOme Care Study. J Am Geriatr Soc. 55(3):439-44.