Evaluation design of Urban Health Centres Europe (UHCE): preventive integrated health and social care for community-dwelling older persons in five European cities oleh Carmen B. Franse, Antonius J.J. Voorham, Rob van Staveren, Elin Koppelaar, Rens Martijn, Elisa Valía-Cotanda, Tamara Alhambra-Borrás, Tasos Rentoumis, Lovorka Bilajac, Vanja Vasiljev Marchesi, Tomislav Rukavina, Arpana Verma, Greg Williams, Gary Clough, Jorge Garcés-Ferrer, Francesco Mattace Raso, Hein Raat