disturbances
Tosato, M., Lukas, A., van der Roest, H. G., Danese, P., Antocicco, M., Finne-Soveri, H., Nikolaus, T., Landi, F., Bernabei, R., Onder, G. 2012. Association of pain with behavioral and psychiatric symptoms among nursing home residents with cognitive impairment: Results from the SHELTER study. Pain. 153 (2) 305-310.