Determinants of Quality of Life in Ageing Populations: Results from a Cross-Sectional Study in Finland, Poland and Spain - Raggi A, Corso B, Minicuci N, Quintas R, Sattin D, De Torres L, Chatterji S, Frisoni GB, Haro JM, Koskinen S, Martinuzzi A, Miret M, Tobiasz-Adamczyk B, Leonardi M (Plos One, 2016)