*Skilled Nursing Facilities/ut [Utilization]

Björkgren, M. A., Hakkinen, U., Finne-Soveri, U. H., Fries, B. E. 1999. Validity and reliability of Resource Utilization Groups (RUG-III) in Finnish long-term care facilities. Scandinavian Journal of Public Health. 27 (3) 228-34.

Fries, B. E., Schneider, D. P., Foley, W. J., Dowling, M. 1989. Case-mix classification of Medicare residents in skilled nursing facilities: resource utilization groups (RUG-T18). Medical Care. 27 (9) 843-58.