Rummukainen, M.-L., Äino Jakobsson, M. matsinen, P. Karppi, S. Järvenpää, and O. Lyytikäinen. “Sustained Increase in the Use of Alcohol-Based Hand Rubs in Finnish Long-Term Care Facilities”. International Journal of Infection Control, vol. 8, no. 1, Oct. 2011, doi:10.3396/ijic.v8i1.9108.